Answers

Add 72/49 and 63/20

1^st number: 1 23/49, 2^nd number: 3 3/20

72/49 + 63/20 is 4527/980.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 49 × 20 = 980,
   72/49 = 72 × 20/49 × 20 = 1440/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   63/20 = 63 × 49/20 × 49 = 3087/980
4. Add the two like fractions:
   1440/980 + 3087/980 = 1440 + 3087/980 = 4527/980
5. So, 72/49 + 63/20 = 4527/980
   In mixed form: 4607/980

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