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Add 21/14 and 7/4

1st number: 1 7/14, 2nd number: 1 3/4

21/14 + 7/4 is 13/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 4 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 14 × 2 = 28,
    21/14 = 21 × 2/14 × 2 = 42/28
  3. Likewise, for the 2nd fraction, since 4 × 7 = 28,
    7/4 = 7 × 7/4 × 7 = 49/28
  4. Add the two like fractions:
    42/28 + 49/28 = 42 + 49/28 = 91/28
  5. 91/28 simplified gives 13/4
  6. So, 21/14 + 7/4 = 13/4
    In mixed form: 31/4

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