Subtract 45/27 from 7/80
1st number: 7/80, 2nd number: 1 18/27
7/80 - 45/27 is -379/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
7/80 = 7 × 27/80 × 27 = 189/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
45/27 = 45 × 80/27 × 80 = 3600/2160 - Subtract the two like fractions:
189/2160 - 3600/2160 = 189 - 3600/2160 = -3411/2160 - After reducing the fraction, the answer is -379/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/80-45/27 7/80-90/27 7/80-45/54 21/80-45/27 7/80-45/81 35/80-45/27 49/80-45/27