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Subtract 20/70 from 64/45

1st number: 1 19/45, 2nd number: 20/70

64/45 - 20/70 is 358/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 45 × 14 = 630,
    64/45 = 64 × 14/45 × 14 = 896/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    20/70 = 20 × 9/70 × 9 = 180/630
  4. Subtract the two like fractions:
    896/630 - 180/630 = 896 - 180/630 = 716/630
  5. After reducing the fraction, the answer is 358/315
  6. In mixed form: 143/315

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