Question

Помогите сросно номер 4

Answer 1

а)5/6+1/4=5/6*2+1/4*3=10/12+3/12=1 1/12
б)7/8-5/6=7/8*3-5/6*4=21/24-20/24=1/24
в)3/10-4/15=3/10*3-4/15*2=9/30-8/30=1/30
г)5-3 2/7= 1 5/7
д)4/9*3/8=1/6
е)5/8:9/10=25/36
ж)2 6/7 :1 3/7= 20/7:10/7=2
з)6 3/5*10= 6 3/5*2 *10 = 6 6/10 * 10 =12