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Add 40/10 and 15/84

1st number: 4 0/10, 2nd number: 15/84

40/10 + 15/84 is 117/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 10 × 42 = 420,
    40/10 = 40 × 42/10 × 42 = 1680/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    15/84 = 15 × 5/84 × 5 = 75/420
  4. Add the two like fractions:
    1680/420 + 75/420 = 1680 + 75/420 = 1755/420
  5. 1755/420 simplified gives 117/28
  6. So, 40/10 + 15/84 = 117/28
    In mixed form: 45/28

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