Question

вычислите 2 7/9 * 15
28 * 1 3/4
1 3/5 * 2 1/2

Answer 1

2 7/9*15=25/9*15=25*5/3=125/3=412/3
28*1 3/4=28*7/4=7*7=49
1 3/5*2 1/2=8/5*5/2=8/2=4