Answers

Add 21/72 and 63/60

1^st number: 21/72, 2^nd number: 1 3/60

21/72 + 63/60 is 161/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 60 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   21/72 = 21 × 5/72 × 5 = 105/360
3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
   63/60 = 63 × 6/60 × 6 = 378/360
4. Add the two like fractions:
   105/360 + 378/360 = 105 + 378/360 = 483/360
5. 483/360 simplified gives 161/120
6. So, 21/72 + 63/60 = 161/120
   In mixed form: 141/120

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