Subtract 18/30 from 16/36
16/36 - 18/30 is -7/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
16/36 = 16 × 5/36 × 5 = 80/180 - Likewise, for the 2nd fraction, since 30 × 6 = 180,
18/30 = 18 × 6/30 × 6 = 108/180 - Subtract the two like fractions:
80/180 - 108/180 = 80 - 108/180 = -28/180 - 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: 32/36-18/30 16/36-36/30 16/72-18/30 16/36-18/60 48/36-18/30 16/36-54/30 16/36-18/90 80/36-18/30 16/36-90/30