Answers

Add 48/63 and 21/60

48/63 + 21/60 is 467/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 60 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   48/63 = 48 × 20/63 × 20 = 960/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   21/60 = 21 × 21/60 × 21 = 441/1260
4. Add the two like fractions:
   960/1260 + 441/1260 = 960 + 441/1260 = 1401/1260
5. 1401/1260 simplified gives 467/420
6. So, 48/63 + 21/60 = 467/420
   In mixed form: 147/420

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