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Add 21/6 and 30/40

1st number: 3 3/6, 2nd number: 30/40

21/6 + 30/40 is 17/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 40 is 120
  2. For the 1st fraction, since 6 × 20 = 120,
    21/6 = 21 × 20/6 × 20 = 420/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    30/40 = 30 × 3/40 × 3 = 90/120
  4. Add the two fractions:
    420/120 + 90/120 = 420 + 90/120 = 510/120
  5. 510/120 simplified gives 17/4
  6. So, 21/6 + 30/40 = 17/4
    In mixed form: 41/4

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