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Add 15/72 and 42/98

15/72 + 42/98 is 107/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 98 is 3528

    Next, find the equivalent fraction of both fractional numbers with denominator 3528
  2. For the 1st fraction, since 72 × 49 = 3528,
    15/72 = 15 × 49/72 × 49 = 735/3528
  3. Likewise, for the 2nd fraction, since 98 × 36 = 3528,
    42/98 = 42 × 36/98 × 36 = 1512/3528
  4. Add the two like fractions:
    735/3528 + 1512/3528 = 735 + 1512/3528 = 2247/3528
  5. 2247/3528 simplified gives 107/168
  6. So, 15/72 + 42/98 = 107/168

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