Subtract 24/28 from 3/10
3/10 - 24/28 is -39/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
3/10 = 3 × 14/10 × 14 = 42/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
24/28 = 24 × 5/28 × 5 = 120/140 - Subtract the two like fractions:
42/140 - 120/140 = 42 - 120/140 = -78/140 - After reducing the fraction, the answer is -39/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-24/28 3/10-48/28 3/20-24/28 3/10-24/56 9/10-24/28 3/10-72/28 3/30-24/28 3/10-24/84 15/10-24/28 3/50-24/28 21/10-24/28 3/70-24/28