Subtract 40/30 from 3/14
1st number: 3/14, 2nd number: 1 10/30
3/14 - 40/30 is -47/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
3/14 = 3 × 15/14 × 15 = 45/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
40/30 = 40 × 7/30 × 7 = 280/210 - Subtract the two like fractions:
45/210 - 280/210 = 45 - 280/210 = -235/210 - After reducing the fraction, the answer is -47/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/14-40/30 3/14-80/30 3/28-40/30 3/14-40/60 9/14-40/30 3/42-40/30 3/14-40/90 15/14-40/30 3/70-40/30 21/14-40/30 3/98-40/30