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Add 90/63 and 98/60

1st number: 1 27/63, 2nd number: 1 38/60

90/63 + 98/60 is 643/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 60 is 1260
  2. For the 1st fraction, since 63 × 20 = 1260,
    90/63 = 90 × 20/63 × 20 = 1800/1260
  3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
    98/60 = 98 × 21/60 × 21 = 2058/1260
  4. Add the two fractions:
    1800/1260 + 2058/1260 = 1800 + 2058/1260 = 3858/1260
  5. 3858/1260 simplified gives 643/210
  6. So, 90/63 + 98/60 = 643/210
    In mixed form: 313/210

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