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Add 7/4 and 21/10

1st number: 1 3/4, 2nd number: 2 1/10

7/4 + 21/10 is 77/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 10 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    7/4 = 7 × 5/4 × 5 = 35/20
  3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
    21/10 = 21 × 2/10 × 2 = 42/20
  4. Add the two like fractions:
    35/20 + 42/20 = 35 + 42/20 = 77/20
  5. So, 7/4 + 21/10 = 77/20
    In mixed form: 317/20

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