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Add 30/7 and 28/40

1st number: 4 2/7, 2nd number: 28/40

30/7 + 28/40 is 349/70.

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,
    30/7 = 30 × 40/7 × 40 = 1200/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    28/40 = 28 × 7/40 × 7 = 196/280
  4. Add the two like fractions:
    1200/280 + 196/280 = 1200 + 196/280 = 1396/280
  5. 1396/280 simplified gives 349/70
  6. So, 30/7 + 28/40 = 349/70
    In mixed form: 469/70

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