Answers

Add 98/20 and 42/63

1^st number: 4 18/20, 2^nd number: 42/63

98/20 + 42/63 is 167/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   98/20 = 98 × 63/20 × 63 = 6174/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   42/63 = 42 × 20/63 × 20 = 840/1260
4. Add the two like fractions:
   6174/1260 + 840/1260 = 6174 + 840/1260 = 7014/1260
5. 7014/1260 simplified gives 167/30
6. So, 98/20 + 42/63 = 167/30
   In mixed form: 517/30

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