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Add 45/90 and 21/49

45/90 + 21/49 is 13/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 49 is 4410

    Next, find the equivalent fraction of both fractional numbers with denominator 4410
  2. For the 1st fraction, since 90 × 49 = 4410,
    45/90 = 45 × 49/90 × 49 = 2205/4410
  3. Likewise, for the 2nd fraction, since 49 × 90 = 4410,
    21/49 = 21 × 90/49 × 90 = 1890/4410
  4. Add the two like fractions:
    2205/4410 + 1890/4410 = 2205 + 1890/4410 = 4095/4410
  5. 4095/4410 simplified gives 13/14
  6. So, 45/90 + 21/49 = 13/14

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