Answers

Add 70/21 and 72/8

1^st number: 3 7/21, 2^nd number: 9 0/8

70/21 + 72/8 is 37/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 21 × 8 = 168,
   70/21 = 70 × 8/21 × 8 = 560/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   72/8 = 72 × 21/8 × 21 = 1512/168
4. Add the two like fractions:
   560/168 + 1512/168 = 560 + 1512/168 = 2072/168
5. 2072/168 simplified gives 37/3
6. So, 70/21 + 72/8 = 37/3
   In mixed form: 121/3

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