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Add 70/7 and 42/20

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

70/7 + 42/20 is 121/10.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 7 × 20 = 140,
    70/7 = 70 × 20/7 × 20 = 1400/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    42/20 = 42 × 7/20 × 7 = 294/140
  4. Add the two like fractions:
    1400/140 + 294/140 = 1400 + 294/140 = 1694/140
  5. 1694/140 simplified gives 121/10
  6. So, 70/7 + 42/20 = 121/10
    In mixed form: 121/10

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