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Add 40/28 and 9/30

1st number: 1 12/28, 2nd number: 9/30

40/28 + 9/30 is 121/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 30 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 28 × 15 = 420,
    40/28 = 40 × 15/28 × 15 = 600/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    9/30 = 9 × 14/30 × 14 = 126/420
  4. Add the two like fractions:
    600/420 + 126/420 = 600 + 126/420 = 726/420
  5. 726/420 simplified gives 121/70
  6. So, 40/28 + 9/30 = 121/70
    In mixed form: 151/70

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