Answers

Add 90/7 and 72/60

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

90/7 + 72/60 is 492/35.

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,
   72/60 = 72 × 7/60 × 7 = 504/420
4. Add the two like fractions:
   5400/420 + 504/420 = 5400 + 504/420 = 5904/420
5. 5904/420 simplified gives 492/35
6. So, 90/7 + 72/60 = 492/35
   In mixed form: 142/35

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