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Add 60/21 and 10/40

1st number: 2 18/21, 2nd number: 10/40

60/21 + 10/40 is 87/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 21 × 40 = 840,
    60/21 = 60 × 40/21 × 40 = 2400/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    10/40 = 10 × 21/40 × 21 = 210/840
  4. Add the two like fractions:
    2400/840 + 210/840 = 2400 + 210/840 = 2610/840
  5. 2610/840 simplified gives 87/28
  6. So, 60/21 + 10/40 = 87/28
    In mixed form: 33/28

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