Сложите дроби,предварительно сократив их.
Работайте по образцу: 10/16 + 3/24 = 5/8 + 1/8 = 6/8 = 3/4
а) 6/15 и 2/25; б) 1/45 и 2/36; в) 10/120 и 60/150; г) 12/360 и 20/480.
Работайте по образцу: 10/16 + 3/24 = 5/8 + 1/8 = 6/8 = 3/4
а) 6/15 и 2/25; б) 1/45 и 2/36; в) 10/120 и 60/150; г) 12/360 и 20/480.
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6/15+2/25=2/5+2/25=10/25+2/25=12/251/45+2/36=1/45+1/18=2/90+5/90=7/90
10/120+60/150=1/12+2/5=5/60+24/60=29/60
12/360+20/480=1/30+1/24=4/120+5/120=9/120=3/40