Answers

Add 21/24 and 5/72

21/24 + 5/72 is 17/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 24 × 3 = 72,
   21/24 = 21 × 3/24 × 3 = 63/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   5/72 = 5 × 1/72 × 1 = 5/72
4. Add the two like fractions:
   63/72 + 5/72 = 63 + 5/72 = 68/72
5. 68/72 simplified gives 17/18
6. So, 21/24 + 5/72 = 17/18

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