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Subtract 21/27 from 70/60

1st number: 1 10/60, 2nd number: 21/27

70/60 - 21/27 is 7/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 27 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 60 × 9 = 540,
    70/60 = 70 × 9/60 × 9 = 630/540
  3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
    21/27 = 21 × 20/27 × 20 = 420/540
  4. Subtract the two like fractions:
    630/540 - 420/540 = 630 - 420/540 = 210/540
  5. After reducing the fraction, the answer is 7/18

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