Answers

Add 90/7 and 42/60

1^st number: 12 6/7, 2^nd number: 42/60

90/7 + 42/60 is 949/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 7 × 60 = 420,
   90/7 = 90 × 60/7 × 60 = 5400/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   42/60 = 42 × 7/60 × 7 = 294/420
4. Add the two like fractions:
   5400/420 + 294/420 = 5400 + 294/420 = 5694/420
5. 5694/420 simplified gives 949/70
6. So, 90/7 + 42/60 = 949/70
   In mixed form: 1339/70

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