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Add 7/8 and 3/10

7/8 + 3/10 is 47/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    7/8 = 7 × 5/8 × 5 = 35/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    3/10 = 3 × 4/10 × 4 = 12/40
  4. Add the two fractions:
    35/40 + 12/40 = 35 + 12/40 = 47/40
  5. In mixed form: 17/40

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