Answers

Add 63/28 and 20/60

1^st number: 2 7/28, 2^nd number: 20/60

63/28 + 20/60 is 31/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 28 × 15 = 420,
   63/28 = 63 × 15/28 × 15 = 945/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   20/60 = 20 × 7/60 × 7 = 140/420
4. Add the two like fractions:
   945/420 + 140/420 = 945 + 140/420 = 1085/420
5. 1085/420 simplified gives 31/12
6. So, 63/28 + 20/60 = 31/12
   In mixed form: 27/12

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