Subtract 15/16 from 15/30
15/30 - 15/16 is -7/16.
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,
15/30 = 15 × 8/30 × 8 = 120/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
15/16 = 15 × 15/16 × 15 = 225/240 - Subtract the two like fractions:
120/240 - 225/240 = 120 - 225/240 = -105/240 - After reducing the fraction, the answer is -7/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30-30/16 15/60-15/16 15/30-15/32 45/30-15/16 15/30-45/16 15/90-15/16 15/30-15/48 75/30-15/16 15/30-75/16 15/30-15/80