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Add 21/56 and 70/40

1st number: 21/56, 2nd number: 1 30/40

21/56 + 70/40 is 17/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 56 × 5 = 280,
    21/56 = 21 × 5/56 × 5 = 105/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    70/40 = 70 × 7/40 × 7 = 490/280
  4. Add the two like fractions:
    105/280 + 490/280 = 105 + 490/280 = 595/280
  5. 595/280 simplified gives 17/8
  6. So, 21/56 + 70/40 = 17/8
    In mixed form: 21/8

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