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Add 80/84 and 42/60

80/84 + 42/60 is 347/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    80/84 = 80 × 5/84 × 5 = 400/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    42/60 = 42 × 7/60 × 7 = 294/420
  4. Add the two like fractions:
    400/420 + 294/420 = 400 + 294/420 = 694/420
  5. 694/420 simplified gives 347/210
  6. So, 80/84 + 42/60 = 347/210
    In mixed form: 1137/210

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