Subtract 18/10 from 16/40
1st number: 16/40, 2nd number: 1 8/10
16/40 - 18/10 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
16/40 = 16 × 1/40 × 1 = 16/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
18/10 = 18 × 4/10 × 4 = 72/40 - Subtract the two like fractions:
16/40 - 72/40 = 16 - 72/40 = -56/40 - After reducing the fraction, the answer is -7/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40-18/10 16/40-36/10 16/80-18/10 16/40-18/20 48/40-18/10 16/40-54/10 16/40-18/30 80/40-18/10 16/40-90/10 16/40-18/50 16/40-18/70