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Add 60/63 and 20/90

60/63 + 20/90 is 74/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 90 is 630
  2. For the 1st fraction, since 63 × 10 = 630,
    60/63 = 60 × 10/63 × 10 = 600/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    20/90 = 20 × 7/90 × 7 = 140/630
  4. Add the two fractions:
    600/630 + 140/630 = 600 + 140/630 = 740/630
  5. 740/630 simplified gives 74/63
  6. So, 60/63 + 20/90 = 74/63
    In mixed form: 111/63

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