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Add 90/80 and 27/28

1st number: 1 10/80, 2nd number: 27/28

90/80 + 27/28 is 117/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 28 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    90/80 = 90 × 7/80 × 7 = 630/560
  3. Likewise, for the 2nd fraction, since 28 × 20 = 560,
    27/28 = 27 × 20/28 × 20 = 540/560
  4. Add the two like fractions:
    630/560 + 540/560 = 630 + 540/560 = 1170/560
  5. 1170/560 simplified gives 117/56
  6. So, 90/80 + 27/28 = 117/56
    In mixed form: 25/56

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