Subtract 28/30 from 3/16
3/16 - 28/30 is -179/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
3/16 = 3 × 15/16 × 15 = 45/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
28/30 = 28 × 8/30 × 8 = 224/240 - Subtract the two like fractions:
45/240 - 224/240 = 45 - 224/240 = -179/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/16-28/30 3/16-56/30 3/32-28/30 3/16-28/60 9/16-28/30 3/16-84/30 3/48-28/30 3/16-28/90 15/16-28/30 3/80-28/30 21/16-28/30