Answers

Add 21/72 and 50/7

1^st number: 21/72, 2^nd number: 7 1/7

21/72 + 50/7 is 1249/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 7 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   21/72 = 21 × 7/72 × 7 = 147/504
3. Likewise, for the 2nd fraction, since 7 × 72 = 504,
   50/7 = 50 × 72/7 × 72 = 3600/504
4. Add the two like fractions:
   147/504 + 3600/504 = 147 + 3600/504 = 3747/504
5. 3747/504 simplified gives 1249/168
6. So, 21/72 + 50/7 = 1249/168
   In mixed form: 773/168

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