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Add 9/70 and 90/80

1st number: 9/70, 2nd number: 1 10/80

9/70 + 90/80 is 351/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 70 × 8 = 560,
    9/70 = 9 × 8/70 × 8 = 72/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    90/80 = 90 × 7/80 × 7 = 630/560
  4. Add the two like fractions:
    72/560 + 630/560 = 72 + 630/560 = 702/560
  5. 702/560 simplified gives 351/280
  6. So, 9/70 + 90/80 = 351/280
    In mixed form: 171/280

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