1/6+5/12=(1*2+5)/12=7/12
11/49+6/7=(11+6*7)/49=53/49=1 4/49
6/120+3/20=
**сокращаем первую дробь на 6**
=1/20+3/20=(1+3)/20=4/20=1/5 (или 0,2)
9/16+50/100=
**сокращаем вторую дробь на 50**
=9/16+1/2=(9+8)/16=17/16=1 1/16
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1/6+5/12=(1*2+5)/12=7/12
11/49+6/7=(11+6*7)/49=53/49=1 4/49
6/120+3/20=
**сокращаем первую дробь на 6**
=1/20+3/20=(1+3)/20=4/20=1/5 (или 0,2)
9/16+50/100=
**сокращаем вторую дробь на 50**
=9/16+1/2=(9+8)/16=17/16=1 1/16