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Add 21/70 and 90/96

21/70 + 90/96 is 99/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 96 is 3360

    Next, find the equivalent fraction of both fractional numbers with denominator 3360
  2. For the 1st fraction, since 70 × 48 = 3360,
    21/70 = 21 × 48/70 × 48 = 1008/3360
  3. Likewise, for the 2nd fraction, since 96 × 35 = 3360,
    90/96 = 90 × 35/96 × 35 = 3150/3360
  4. Add the two like fractions:
    1008/3360 + 3150/3360 = 1008 + 3150/3360 = 4158/3360
  5. 4158/3360 simplified gives 99/80
  6. So, 21/70 + 90/96 = 99/80
    In mixed form: 119/80

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