Subtract 84/8 from 14/42
1st number: 14/42, 2nd number: 10 4/8
14/42 - 84/8 is -61/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
14/42 = 14 × 4/42 × 4 = 56/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
84/8 = 84 × 21/8 × 21 = 1764/168 - Subtract the two like fractions:
56/168 - 1764/168 = 56 - 1764/168 = -1708/168 - After reducing the fraction, the answer is -61/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/42-84/8 14/84-84/8 14/42-84/16 14/42-84/24 70/42-84/8 14/42-84/40 98/42-84/8 14/42-84/56