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Add 28/35 and 15/16

28/35 + 15/16 is 139/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 16 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 35 × 16 = 560,
    28/35 = 28 × 16/35 × 16 = 448/560
  3. Likewise, for the 2nd fraction, since 16 × 35 = 560,
    15/16 = 15 × 35/16 × 35 = 525/560
  4. Add the two like fractions:
    448/560 + 525/560 = 448 + 525/560 = 973/560
  5. 973/560 simplified gives 139/80
  6. So, 28/35 + 15/16 = 139/80
    In mixed form: 159/80

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