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Add 5/42 and 72/40

1st number: 5/42, 2nd number: 1 32/40

5/42 + 72/40 is 403/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 42 × 20 = 840,
    5/42 = 5 × 20/42 × 20 = 100/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    72/40 = 72 × 21/40 × 21 = 1512/840
  4. Add the two like fractions:
    100/840 + 1512/840 = 100 + 1512/840 = 1612/840
  5. 1612/840 simplified gives 403/210
  6. So, 5/42 + 72/40 = 403/210
    In mixed form: 1193/210

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