Question

5 1/7*(1-8/9)
2 3/4-1 11/12

Answer 1

A)5 1/7*(1-8/9)=36/7*(9/9-8/9)=36/7*1/9(skracasz 36 i 9 przez 9)=4/7

b)2 3/4-1 11/12=11/4-23/12=33/12-23/12=10/12(skracasz przez 2)=5/6

LICZĘ NA NAJ :)

Answer 2

36/7 * (9/9 - 8/9)=36/7 * 1/9 =4/7

2 3/4-1 11/12 =2 9/12-1 11/12=1 21/12-1 11/12=10/12