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Add 1/20 and 15/8

1st number: 1/20, 2nd number: 1 7/8

1/20 + 15/8 is 77/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    1/20 = 1 × 2/20 × 2 = 2/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    15/8 = 15 × 5/8 × 5 = 75/40
  4. Add the two fractions:
    2/40 + 75/40 = 2 + 75/40 = 77/40
  5. In mixed form: 137/40

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