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Subtract 20/18 from 84/70

1st number: 1 14/70, 2nd number: 1 2/18

84/70 - 20/18 is 4/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 18 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    84/70 = 84 × 9/70 × 9 = 756/630
  3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
    20/18 = 20 × 35/18 × 35 = 700/630
  4. Subtract the two like fractions:
    756/630 - 700/630 = 756 - 700/630 = 56/630
  5. After reducing the fraction, the answer is 4/45

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