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Add 60/21 and 40/18

1st number: 2 18/21, 2nd number: 2 4/18

60/21 + 40/18 is 320/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 18 is 126
  2. For the 1st fraction, since 21 × 6 = 126,
    60/21 = 60 × 6/21 × 6 = 360/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    40/18 = 40 × 7/18 × 7 = 280/126
  4. Add the two fractions:
    360/126 + 280/126 = 360 + 280/126 = 640/126
  5. 640/126 simplified gives 320/63
  6. So, 60/21 + 40/18 = 320/63
    In mixed form: 55/63

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