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Subtract 70/54 from 21/5

1st number: 4 1/5, 2nd number: 1 16/54

21/5 - 70/54 is 392/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 5 × 54 = 270,
    21/5 = 21 × 54/5 × 54 = 1134/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    70/54 = 70 × 5/54 × 5 = 350/270
  4. Subtract the two like fractions:
    1134/270 - 350/270 = 1134 - 350/270 = 784/270
  5. After reducing the fraction, the answer is 392/135
  6. In mixed form: 2122/135

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