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Subtract 48/20 from 7/70

1st number: 7/70, 2nd number: 2 8/20

7/70 - 48/20 is -23/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 70 × 2 = 140,
    7/70 = 7 × 2/70 × 2 = 14/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    48/20 = 48 × 7/20 × 7 = 336/140
  4. Subtract the two like fractions:
    14/140 - 336/140 = 14 - 336/140 = -322/140
  5. After reducing the fraction, the answer is -23/10

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