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Subtract 42/90 from 45/35

1st number: 1 10/35, 2nd number: 42/90

45/35 - 42/90 is 86/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 35 × 18 = 630,
    45/35 = 45 × 18/35 × 18 = 810/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    42/90 = 42 × 7/90 × 7 = 294/630
  4. Subtract the two like fractions:
    810/630 - 294/630 = 810 - 294/630 = 516/630
  5. After reducing the fraction, the answer is 86/105

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