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Add 1/10 and 21/8

1st number: 1/10, 2nd number: 2 5/8

1/10 + 21/8 is 109/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 8 is 40
  2. For the 1st fraction, since 10 × 4 = 40,
    1/10 = 1 × 4/10 × 4 = 4/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    21/8 = 21 × 5/8 × 5 = 105/40
  4. Add the two fractions:
    4/40 + 105/40 = 4 + 105/40 = 109/40
  5. In mixed form: 229/40

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