a)7/10+3/100+5/1000=7/10+3/100+1/200=140+6+1/2000=147/200
b)15/75+35/25+24/40=1/5+35/25+24/40=1/5+7/5+24/40=1/5+7/5+3/5=1+7+3/5=11/5
c)6/13+16/26+35/65=6/13+8/13+35/65=6/13+8/13+7/13=6+8+7/13=21/13
d)4/3+24/36+16/24=4/3+2/3+16/24=4/3+2/3+2/3=4+2+2/3=8/3.
Explicația:cred că ai înțeles.7
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