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Add 9/20 and 63/35

1st number: 9/20, 2nd number: 1 28/35

9/20 + 63/35 is 9/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    9/20 = 9 × 7/20 × 7 = 63/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    63/35 = 63 × 4/35 × 4 = 252/140
  4. Add the two fractions:
    63/140 + 252/140 = 63 + 252/140 = 315/140
  5. 315/140 simplified gives 9/4
  6. So, 9/20 + 63/35 = 9/4
    In mixed form: 21/4

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