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Add 25/18 and 42/40

1st number: 1 7/18, 2nd number: 1 2/40

25/18 + 42/40 is 439/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360
  2. For the 1st fraction, since 18 × 20 = 360,
    25/18 = 25 × 20/18 × 20 = 500/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    42/40 = 42 × 9/40 × 9 = 378/360
  4. Add the two fractions:
    500/360 + 378/360 = 500 + 378/360 = 878/360
  5. After reducing the fraction, the answer is 439/180
  6. In mixed form: 279/180

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