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Add 40/20 and 70/7

1st number: 2 0/20, 2nd number: 10 0/7

40/20 + 70/7 is 12/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    40/20 = 40 × 7/20 × 7 = 280/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    70/7 = 70 × 20/7 × 20 = 1400/140
  4. Add the two like fractions:
    280/140 + 1400/140 = 280 + 1400/140 = 1680/140
  5. 1680/140 simplified gives 12/1
  6. So, 40/20 + 70/7 = 12/1

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