Subtract 4/10 from 7/30
7/30 - 4/10 is -1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
7/30 = 7 × 1/30 × 1 = 7/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
4/10 = 4 × 3/10 × 3 = 12/30 - Subtract the two like fractions:
7/30 - 12/30 = 7 - 12/30 = -5/30 - After reducing the fraction, the answer is -1/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-4/10 7/30-8/10 7/60-4/10 7/30-4/20 21/30-4/10 7/30-12/10 7/90-4/10 7/30-4/30 35/30-4/10 7/30-20/10 7/30-4/50 49/30-4/10 7/30-28/10 7/30-4/70