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Add 70/96 and 21/90

70/96 + 21/90 is 77/80.

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,
    70/96 = 70 × 15/96 × 15 = 1050/1440
  3. Likewise, for the 2nd fraction, since 90 × 16 = 1440,
    21/90 = 21 × 16/90 × 16 = 336/1440
  4. Add the two like fractions:
    1050/1440 + 336/1440 = 1050 + 336/1440 = 1386/1440
  5. 1386/1440 simplified gives 77/80
  6. So, 70/96 + 21/90 = 77/80

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