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Add 40/30 and 21/80

1st number: 1 10/30, 2nd number: 21/80

40/30 + 21/80 is 383/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 80 is 240
  2. For the 1st fraction, since 30 × 8 = 240,
    40/30 = 40 × 8/30 × 8 = 320/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    21/80 = 21 × 3/80 × 3 = 63/240
  4. Add the two fractions:
    320/240 + 63/240 = 320 + 63/240 = 383/240
  5. In mixed form: 1143/240

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