Answers

Add 21/96 and 16/90

21/96 + 16/90 is 571/1440.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 90 is 1440
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1440
2. For the 1st fraction, since 96 × 15 = 1440,
   21/96 = 21 × 15/96 × 15 = 315/1440
3. Likewise, for the 2nd fraction, since 90 × 16 = 1440,
   16/90 = 16 × 16/90 × 16 = 256/1440
4. Add the two like fractions:
   315/1440 + 256/1440 = 315 + 256/1440 = 571/1440
5. So, 21/96 + 16/90 = 571/1440

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