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Add 40/21 and 63/10

1st number: 1 19/21, 2nd number: 6 3/10

40/21 + 63/10 is 1723/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    40/21 = 40 × 10/21 × 10 = 400/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    63/10 = 63 × 21/10 × 21 = 1323/210
  4. Add the two like fractions:
    400/210 + 1323/210 = 400 + 1323/210 = 1723/210
  5. So, 40/21 + 63/10 = 1723/210
    In mixed form: 843/210

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