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Subtract 21/18 from 70/10

1st number: 7 0/10, 2nd number: 1 3/18

70/10 - 21/18 is 35/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    70/10 = 70 × 9/10 × 9 = 630/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    21/18 = 21 × 5/18 × 5 = 105/90
  4. Subtract the two like fractions:
    630/90 - 105/90 = 630 - 105/90 = 525/90
  5. After reducing the fraction, the answer is 35/6
  6. In mixed form: 55/6

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