Subtract 14/80 from 28/45
28/45 - 14/80 is 161/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
28/45 = 28 × 16/45 × 16 = 448/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
14/80 = 14 × 9/80 × 9 = 126/720 - Subtract the two like fractions:
448/720 - 126/720 = 448 - 126/720 = 322/720 - After reducing the fraction, the answer is 161/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-14/80 28/45-28/80 28/90-14/80 84/45-14/80 28/45-42/80 28/45-70/80 28/45-98/80