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Add 7/49 and 80/90

7/49 + 80/90 is 65/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 90 is 4410
  2. For the 1st fraction, since 49 × 90 = 4410,
    7/49 = 7 × 90/49 × 90 = 630/4410
  3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
    80/90 = 80 × 49/90 × 49 = 3920/4410
  4. Add the two fractions:
    630/4410 + 3920/4410 = 630 + 3920/4410 = 4550/4410
  5. After reducing the fraction, the answer is 65/63
  6. In mixed form: 12/63

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