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Add 35/40 and 21/63

35/40 + 21/63 is 29/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    35/40 = 35 × 63/40 × 63 = 2205/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    21/63 = 21 × 40/63 × 40 = 840/2520
  4. Add the two like fractions:
    2205/2520 + 840/2520 = 2205 + 840/2520 = 3045/2520
  5. 3045/2520 simplified gives 29/24
  6. So, 35/40 + 21/63 = 29/24
    In mixed form: 15/24

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