Subtract 5/80 from 4/30
4/30 - 5/80 is 17/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
4/30 = 4 × 8/30 × 8 = 32/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
5/80 = 5 × 3/80 × 3 = 15/240 - Subtract the two like fractions:
32/240 - 15/240 = 32 - 15/240 = 17/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30-5/80 4/30-10/80 4/60-5/80 12/30-5/80 4/30-15/80 4/90-5/80 20/30-5/80 4/30-25/80 28/30-5/80 4/30-35/80