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Add 70/7 and 18/80

1st number: 10 0/7, 2nd number: 18/80

70/7 + 18/80 is 409/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 7 × 80 = 560,
    70/7 = 70 × 80/7 × 80 = 5600/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    18/80 = 18 × 7/80 × 7 = 126/560
  4. Add the two like fractions:
    5600/560 + 126/560 = 5600 + 126/560 = 5726/560
  5. 5726/560 simplified gives 409/40
  6. So, 70/7 + 18/80 = 409/40
    In mixed form: 109/40

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