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Add 2/90 and 63/84

2/90 + 63/84 is 139/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 84 is 1260
  2. For the 1st fraction, since 90 × 14 = 1260,
    2/90 = 2 × 14/90 × 14 = 28/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    63/84 = 63 × 15/84 × 15 = 945/1260
  4. Add the two fractions:
    28/1260 + 945/1260 = 28 + 945/1260 = 973/1260
  5. 973/1260 simplified gives 139/180
  6. So, 2/90 + 63/84 = 139/180

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