Subtract 45/25 from 16/20
1st number: 16/20, 2nd number: 1 20/25
16/20 - 45/25 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
16/20 = 16 × 5/20 × 5 = 80/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
45/25 = 45 × 4/25 × 4 = 180/100 - Subtract the two like fractions:
80/100 - 180/100 = 80 - 180/100 = -100/100 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20-45/25 16/20-90/25 16/40-45/25 16/20-45/50 48/20-45/25 16/60-45/25 16/20-45/75 80/20-45/25