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Subtract 70/15 from 98/40

1st number: 2 18/40, 2nd number: 4 10/15

98/40 - 70/15 is -133/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 15 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 40 × 3 = 120,
    98/40 = 98 × 3/40 × 3 = 294/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    70/15 = 70 × 8/15 × 8 = 560/120
  4. Subtract the two like fractions:
    294/120 - 560/120 = 294 - 560/120 = -266/120
  5. After reducing the fraction, the answer is -133/60

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