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Subtract 63/70 from 9/8

1st number: 1 1/8, 2nd number: 63/70

9/8 - 63/70 is 9/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 70 is 280
  2. For the 1st fraction, since 8 × 35 = 280,
    9/8 = 9 × 35/8 × 35 = 315/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    63/70 = 63 × 4/70 × 4 = 252/280
  4. Subtract the two fractions:
    315/280 - 252/280 = 315 - 252/280 = 63/280
  5. After reducing the fraction, the answer is 9/40

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