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Subtract 49/10 from 2/42

1st number: 2/42, 2nd number: 4 9/10

2/42 - 49/10 is -1019/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 10 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    2/42 = 2 × 5/42 × 5 = 10/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    49/10 = 49 × 21/10 × 21 = 1029/210
  4. Subtract the two like fractions:
    10/210 - 1029/210 = 10 - 1029/210 = -1019/210

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