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Add 1/10 and 21/40

1/10 + 21/40 is 5/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 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 40 × 1 = 40,
    21/40 = 21 × 1/40 × 1 = 21/40
  4. Add the two like fractions:
    4/40 + 21/40 = 4 + 21/40 = 25/40
  5. 25/40 simplified gives 5/8
  6. So, 1/10 + 21/40 = 5/8

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