Subtract 30/54 from 4/10
4/10 - 30/54 is -7/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
4/10 = 4 × 27/10 × 27 = 108/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
30/54 = 30 × 5/54 × 5 = 150/270 - Subtract the two like fractions:
108/270 - 150/270 = 108 - 150/270 = -42/270 - After reducing the fraction, the answer is -7/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10-30/54 4/10-60/54 4/20-30/54 12/10-30/54 4/10-90/54 4/30-30/54 20/10-30/54 4/50-30/54 28/10-30/54 4/70-30/54