Answers

Add 7/84 and 72/60

1^st number: 7/84, 2^nd number: 1 12/60

7/84 + 72/60 is 77/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   7/84 = 7 × 5/84 × 5 = 35/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   72/60 = 72 × 7/60 × 7 = 504/420
4. Add the two like fractions:
   35/420 + 504/420 = 35 + 504/420 = 539/420
5. 539/420 simplified gives 77/60
6. So, 7/84 + 72/60 = 77/60
   In mixed form: 117/60

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