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Add 21/30 and 40/10

1st number: 21/30, 2nd number: 4 0/10

21/30 + 40/10 is 47/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 10 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 30 × 1 = 30,
    21/30 = 21 × 1/30 × 1 = 21/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    40/10 = 40 × 3/10 × 3 = 120/30
  4. Add the two like fractions:
    21/30 + 120/30 = 21 + 120/30 = 141/30
  5. 141/30 simplified gives 47/10
  6. So, 21/30 + 40/10 = 47/10
    In mixed form: 47/10

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