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Add 63/35 and 15/20

1st number: 1 28/35, 2nd number: 15/20

63/35 + 15/20 is 51/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 35 × 4 = 140,
    63/35 = 63 × 4/35 × 4 = 252/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    15/20 = 15 × 7/20 × 7 = 105/140
  4. Add the two like fractions:
    252/140 + 105/140 = 252 + 105/140 = 357/140
  5. 357/140 simplified gives 51/20
  6. So, 63/35 + 15/20 = 51/20
    In mixed form: 211/20

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