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Add 80/8 and 42/90

1st number: 10 0/8, 2nd number: 42/90

80/8 + 42/90 is 157/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360
  2. For the 1st fraction, since 8 × 45 = 360,
    80/8 = 80 × 45/8 × 45 = 3600/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    42/90 = 42 × 4/90 × 4 = 168/360
  4. Add the two fractions:
    3600/360 + 168/360 = 3600 + 168/360 = 3768/360
  5. After reducing the fraction, the answer is 157/15
  6. In mixed form: 107/15

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