Answers

Add 70/20 and 63/98

1^st number: 3 10/20, 2^nd number: 63/98

70/20 + 63/98 is 29/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 98 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   70/20 = 70 × 49/20 × 49 = 3430/980
3. Likewise, for the 2nd fraction, since 98 × 10 = 980,
   63/98 = 63 × 10/98 × 10 = 630/980
4. Add the two like fractions:
   3430/980 + 630/980 = 3430 + 630/980 = 4060/980
5. 4060/980 simplified gives 29/7
6. So, 70/20 + 63/98 = 29/7
   In mixed form: 41/7

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