Subtract 54/16 from 20/30
1st number: 20/30, 2nd number: 3 6/16
20/30 - 54/16 is -65/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
20/30 = 20 × 8/30 × 8 = 160/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
54/16 = 54 × 15/16 × 15 = 810/240 - Subtract the two like fractions:
160/240 - 810/240 = 160 - 810/240 = -650/240 - After reducing the fraction, the answer is -65/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30-54/16 20/60-54/16 20/30-54/32 60/30-54/16 20/90-54/16 20/30-54/48 20/30-54/80