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Add 63/4 and 42/70

1st number: 15 3/4, 2nd number: 42/70

63/4 + 42/70 is 327/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 70 is 140
  2. For the 1st fraction, since 4 × 35 = 140,
    63/4 = 63 × 35/4 × 35 = 2205/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    42/70 = 42 × 2/70 × 2 = 84/140
  4. Add the two fractions:
    2205/140 + 84/140 = 2205 + 84/140 = 2289/140
  5. After reducing the fraction, the answer is 327/20
  6. In mixed form: 167/20

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