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Add 90/21 and 24/40

1st number: 4 6/21, 2nd number: 24/40

90/21 + 24/40 is 171/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 40 is 840
  2. For the 1st fraction, since 21 × 40 = 840,
    90/21 = 90 × 40/21 × 40 = 3600/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    24/40 = 24 × 21/40 × 21 = 504/840
  4. Add the two fractions:
    3600/840 + 504/840 = 3600 + 504/840 = 4104/840
  5. After reducing the fraction, the answer is 171/35
  6. In mixed form: 431/35

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