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Add 63/70 and 12/40

63/70 + 12/40 is 6/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 40 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    63/70 = 63 × 4/70 × 4 = 252/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    12/40 = 12 × 7/40 × 7 = 84/280
  4. Add the two fractions:
    252/280 + 84/280 = 252 + 84/280 = 336/280
  5. 336/280 simplified gives 6/5
  6. So, 63/70 + 12/40 = 6/5
    In mixed form: 11/5

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