Subtract 4/56 from 16/40
16/40 - 4/56 is 23/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
16/40 = 16 × 7/40 × 7 = 112/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
4/56 = 4 × 5/56 × 5 = 20/280 - Subtract the two like fractions:
112/280 - 20/280 = 112 - 20/280 = 92/280 - After reducing the fraction, the answer is 23/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40-4/56 16/40-8/56 16/80-4/56 48/40-4/56 16/40-12/56 80/40-4/56 16/40-20/56 16/40-28/56