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Add 42/80 and 25/18

1st number: 42/80, 2nd number: 1 7/18

42/80 + 25/18 is 689/360.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 18 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    42/80 = 42 × 9/80 × 9 = 378/720
  3. Likewise, for the 2nd fraction, since 18 × 40 = 720,
    25/18 = 25 × 40/18 × 40 = 1000/720
  4. Add the two like fractions:
    378/720 + 1000/720 = 378 + 1000/720 = 1378/720
  5. 1378/720 simplified gives 689/360
  6. So, 42/80 + 25/18 = 689/360
    In mixed form: 1329/360

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