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Add 70/15 and 21/45

1st number: 4 10/15, 2nd number: 21/45

70/15 + 21/45 is 77/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 45 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 15 × 3 = 45,
    70/15 = 70 × 3/15 × 3 = 210/45
  3. Likewise, for the 2nd fraction, since 45 × 1 = 45,
    21/45 = 21 × 1/45 × 1 = 21/45
  4. Add the two like fractions:
    210/45 + 21/45 = 210 + 21/45 = 231/45
  5. 231/45 simplified gives 77/15
  6. So, 70/15 + 21/45 = 77/15
    In mixed form: 52/15

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