Answers

Add 90/70 and 12/50

1^st number: 1 20/70, 2^nd number: 12/50

90/70 + 12/50 is 267/175.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 50 is 350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 350
2. For the 1st fraction, since 70 × 5 = 350,
   90/70 = 90 × 5/70 × 5 = 450/350
3. Likewise, for the 2nd fraction, since 50 × 7 = 350,
   12/50 = 12 × 7/50 × 7 = 84/350
4. Add the two like fractions:
   450/350 + 84/350 = 450 + 84/350 = 534/350
5. 534/350 simplified gives 267/175
6. So, 90/70 + 12/50 = 267/175
   In mixed form: 192/175

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