Answers

Add 20/28 and 70/60

1^st number: 20/28, 2^nd number: 1 10/60

20/28 + 70/60 is 79/42.

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,
   20/28 = 20 × 15/28 × 15 = 300/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   70/60 = 70 × 7/60 × 7 = 490/420
4. Add the two like fractions:
   300/420 + 490/420 = 300 + 490/420 = 790/420
5. 790/420 simplified gives 79/42
6. So, 20/28 + 70/60 = 79/42
   In mixed form: 137/42

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