Subtract 12/30 from 14/80
14/80 - 12/30 is -9/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
14/80 = 14 × 3/80 × 3 = 42/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
12/30 = 12 × 8/30 × 8 = 96/240 - Subtract the two like fractions:
42/240 - 96/240 = 42 - 96/240 = -54/240 - After reducing the fraction, the answer is -9/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/80-12/30 14/80-24/30 14/80-12/60 42/80-12/30 14/80-36/30 14/80-12/90 70/80-12/30 14/80-60/30 98/80-12/30 14/80-84/30