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Add 25/8 and 7/20

1st number: 3 1/8, 2nd number: 7/20

25/8 + 7/20 is 139/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 20 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    25/8 = 25 × 5/8 × 5 = 125/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    7/20 = 7 × 2/20 × 2 = 14/40
  4. Add the two fractions:
    125/40 + 14/40 = 125 + 14/40 = 139/40
  5. In mixed form: 319/40

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