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Add 28/70 and 15/32

28/70 + 15/32 is 139/160.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1120
  2. For the 1st fraction, since 70 × 16 = 1120,
    28/70 = 28 × 16/70 × 16 = 448/1120
  3. Likewise, for the 2nd fraction, since 32 × 35 = 1120,
    15/32 = 15 × 35/32 × 35 = 525/1120
  4. Add the two like fractions:
    448/1120 + 525/1120 = 448 + 525/1120 = 973/1120
  5. 973/1120 simplified gives 139/160
  6. So, 28/70 + 15/32 = 139/160

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