Subtract 14/30 from 4/42
4/42 - 14/30 is -13/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Subtract the two like fractions:
20/210 - 98/210 = 20 - 98/210 = -78/210 - After reducing the fraction, the answer is -13/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42-14/30 4/42-28/30 4/84-14/30 4/42-14/60 12/42-14/30 4/42-42/30 4/42-14/90 20/42-14/30 4/42-70/30 28/42-14/30 4/42-98/30