Answers

Add 70/15 and 63/70

1^st number: 4 10/15, 2^nd number: 63/70

70/15 + 63/70 is 167/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   70/15 = 70 × 14/15 × 14 = 980/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   63/70 = 63 × 3/70 × 3 = 189/210
4. Add the two like fractions:
   980/210 + 189/210 = 980 + 189/210 = 1169/210
5. 1169/210 simplified gives 167/30
6. So, 70/15 + 63/70 = 167/30
   In mixed form: 517/30

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