Question

12/25-4/25×9/25=
425/900+50/900×190/900+21/900=
142/250+87/250×216/250-63/250=
57/70-32/70×62/70-47/70=​

Answer 1

1.

1) 12÷25=0,48

2)4÷25=0,16

3)9÷25=0,36

4)0,16×0,36=0,0576

5)0,48-0,0576=0,4224