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Add 60/63 and 42/90

60/63 + 42/90 is 149/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    42/90 = 42 × 7/90 × 7 = 294/630
  4. Add the two like fractions:
    600/630 + 294/630 = 600 + 294/630 = 894/630
  5. 894/630 simplified gives 149/105
  6. So, 60/63 + 42/90 = 149/105
    In mixed form: 144/105

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