Subtract 54/16 from 80/30
1st number: 2 20/30, 2nd number: 3 6/16
80/30 - 54/16 is -17/24.
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,
80/30 = 80 × 8/30 × 8 = 640/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
54/16 = 54 × 15/16 × 15 = 810/240 - Subtract the two like fractions:
640/240 - 810/240 = 640 - 810/240 = -170/240 - After reducing the fraction, the answer is -17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60-54/16 80/30-54/32 80/90-54/16 80/30-54/48 80/30-54/80