Subtract 10/80 from 28/35
28/35 - 10/80 is 27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 35 × 16 = 560,
28/35 = 28 × 16/35 × 16 = 448/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
10/80 = 10 × 7/80 × 7 = 70/560 - Subtract the two like fractions:
448/560 - 70/560 = 448 - 70/560 = 378/560 - After reducing the fraction, the answer is 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35-10/80 28/35-20/80 28/70-10/80 84/35-10/80 28/35-30/80 28/35-50/80 28/35-70/80