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Add 30/32 and 21/70

30/32 + 21/70 is 99/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 32 and 70 is 1120

    Next, find the equivalent fraction of both fractional numbers with denominator 1120
  2. For the 1st fraction, since 32 × 35 = 1120,
    30/32 = 30 × 35/32 × 35 = 1050/1120
  3. Likewise, for the 2nd fraction, since 70 × 16 = 1120,
    21/70 = 21 × 16/70 × 16 = 336/1120
  4. Add the two like fractions:
    1050/1120 + 336/1120 = 1050 + 336/1120 = 1386/1120
  5. 1386/1120 simplified gives 99/80
  6. So, 30/32 + 21/70 = 99/80
    In mixed form: 119/80

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