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Add 42/60 and 48/63

42/60 + 48/63 is 307/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 63 is 1260
  2. For the 1st fraction, since 60 × 21 = 1260,
    42/60 = 42 × 21/60 × 21 = 882/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    48/63 = 48 × 20/63 × 20 = 960/1260
  4. Add the two fractions:
    882/1260 + 960/1260 = 882 + 960/1260 = 1842/1260
  5. After reducing the fraction, the answer is 307/210
  6. In mixed form: 197/210

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