Answers

Add 72/60 and 21/56

1^st number: 1 12/60, 2^nd number: 21/56

72/60 + 21/56 is 63/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 60 × 14 = 840,
   72/60 = 72 × 14/60 × 14 = 1008/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   21/56 = 21 × 15/56 × 15 = 315/840
4. Add the two like fractions:
   1008/840 + 315/840 = 1008 + 315/840 = 1323/840
5. 1323/840 simplified gives 63/40
6. So, 72/60 + 21/56 = 63/40
   In mixed form: 123/40

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