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Add 8/7 and 20/40

1st number: 1 1/7, 2nd number: 20/40

8/7 + 20/40 is 23/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 7 × 40 = 280,
    8/7 = 8 × 40/7 × 40 = 320/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    20/40 = 20 × 7/40 × 7 = 140/280
  4. Add the two like fractions:
    320/280 + 140/280 = 320 + 140/280 = 460/280
  5. 460/280 simplified gives 23/14
  6. So, 8/7 + 20/40 = 23/14
    In mixed form: 19/14

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