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Add 40/84 and 63/90

40/84 + 63/90 is 247/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    40/84 = 40 × 15/84 × 15 = 600/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    63/90 = 63 × 14/90 × 14 = 882/1260
  4. Add the two like fractions:
    600/1260 + 882/1260 = 600 + 882/1260 = 1482/1260
  5. 1482/1260 simplified gives 247/210
  6. So, 40/84 + 63/90 = 247/210
    In mixed form: 137/210

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