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Add 70/72 and 10/90

70/72 + 10/90 is 13/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    70/72 = 70 × 5/72 × 5 = 350/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    10/90 = 10 × 4/90 × 4 = 40/360
  4. Add the two like fractions:
    350/360 + 40/360 = 350 + 40/360 = 390/360
  5. 390/360 simplified gives 13/12
  6. So, 70/72 + 10/90 = 13/12
    In mixed form: 11/12

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