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Subtract 4/40 from 15/7

1st number: 2 1/7, 2nd number: 4/40

15/7 - 4/40 is 143/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280
  2. For the 1st fraction, since 7 × 40 = 280,
    15/7 = 15 × 40/7 × 40 = 600/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    4/40 = 4 × 7/40 × 7 = 28/280
  4. Subtract the two fractions:
    600/280 - 28/280 = 600 - 28/280 = 572/280
  5. After reducing the fraction, the answer is 143/70
  6. In mixed form: 23/70

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