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Add 40/70 and 42/48

40/70 + 42/48 is 81/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 48 is 1680
  2. For the 1st fraction, since 70 × 24 = 1680,
    40/70 = 40 × 24/70 × 24 = 960/1680
  3. Likewise, for the 2nd fraction, since 48 × 35 = 1680,
    42/48 = 42 × 35/48 × 35 = 1470/1680
  4. Add the two fractions:
    960/1680 + 1470/1680 = 960 + 1470/1680 = 2430/1680
  5. 2430/1680 simplified gives 81/56
  6. So, 40/70 + 42/48 = 81/56
    In mixed form: 125/56

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