Answers

Add 42/20 and 20/63

1^st number: 2 2/20, 2^nd number: 20/63

42/20 + 20/63 is 1523/630.

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,
   42/20 = 42 × 63/20 × 63 = 2646/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   20/63 = 20 × 20/63 × 20 = 400/1260
4. Add the two like fractions:
   2646/1260 + 400/1260 = 2646 + 400/1260 = 3046/1260
5. 3046/1260 simplified gives 1523/630
6. So, 42/20 + 20/63 = 1523/630
   In mixed form: 2263/630

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