5 Klass Matematika Didakticheskii Material Stranitsa 52 V 1 Ershova -

: Subtract the result from the starting fraction.

x=17−920=820x equals the fraction with numerator 17 minus 9 and denominator 20 end-fraction equals 8 over 20 end-fraction : (which can be simplified to 25two-fifths if required). Summary of Educational Concepts : Subtract the result from the starting fraction

This page tests a student's ability to transition from whole numbers to "parts of a whole". It emphasizes: It emphasizes: : Usually involving the total distance

: Usually involving the total distance or amount after several parts are consumed or traveled. Step-by-Step Analysis of Key Problems 1. Calculate a Part from a Whole Problem : In a school, there are 48 fifth-graders. 38three-eighths of them are girls. How many girls are in the fifth grade? Divide the total by the denominator : To find one part ( 18one-eighth ), divide the total number of students by 8. 48÷8=648 divided by 8 equals 6 38three-eighths of them are girls

The problems on page 52 of the "Self-Study and Control Works in Mathematics for Grade 5" by A.P. Ershova and V.V. Goloborodko (Variant 1) focus on the application of . This section typically falls under work related to the theme "Addition and Subtraction of Fractions with Like Denominators" or "Mixed Numbers." Answer Key (Variant 1) Finding a fraction of a number : 18 girls.

: Understanding that the top number indicates how many of those parts are being considered.

: The numerator must be smaller than the denominator ( Possible values: