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Add 21/15 and 42/49

1st number: 1 6/15, 2nd number: 42/49

21/15 + 42/49 is 79/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 49 is 735

    Next, find the equivalent fraction of both fractional numbers with denominator 735
  2. For the 1st fraction, since 15 × 49 = 735,
    21/15 = 21 × 49/15 × 49 = 1029/735
  3. Likewise, for the 2nd fraction, since 49 × 15 = 735,
    42/49 = 42 × 15/49 × 15 = 630/735
  4. Add the two like fractions:
    1029/735 + 630/735 = 1029 + 630/735 = 1659/735
  5. 1659/735 simplified gives 79/35
  6. So, 21/15 + 42/49 = 79/35
    In mixed form: 29/35

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