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Add 40/10 and 70/42

1st number: 4 0/10, 2nd number: 1 28/42

40/10 + 70/42 is 17/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    40/10 = 40 × 21/10 × 21 = 840/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    70/42 = 70 × 5/42 × 5 = 350/210
  4. Add the two like fractions:
    840/210 + 350/210 = 840 + 350/210 = 1190/210
  5. 1190/210 simplified gives 17/3
  6. So, 40/10 + 70/42 = 17/3
    In mixed form: 52/3

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