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Add 42/40 and 27/7

1st number: 1 2/40, 2nd number: 3 6/7

42/40 + 27/7 is 687/140.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    42/40 = 42 × 7/40 × 7 = 294/280
  3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
    27/7 = 27 × 40/7 × 40 = 1080/280
  4. Add the two like fractions:
    294/280 + 1080/280 = 294 + 1080/280 = 1374/280
  5. 1374/280 simplified gives 687/140
  6. So, 42/40 + 27/7 = 687/140
    In mixed form: 4127/140

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