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Add 30/3 and 21/40

1st number: 10 0/3, 2nd number: 21/40

30/3 + 21/40 is 421/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 40 is 120
  2. For the 1st fraction, since 3 × 40 = 120,
    30/3 = 30 × 40/3 × 40 = 1200/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    21/40 = 21 × 3/40 × 3 = 63/120
  4. Add the two fractions:
    1200/120 + 63/120 = 1200 + 63/120 = 1263/120
  5. 1263/120 simplified gives 421/40
  6. So, 30/3 + 21/40 = 421/40
    In mixed form: 1021/40

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