Subtract 27/35 from 90/80
1st number: 1 10/80, 2nd number: 27/35
90/80 - 27/35 is 99/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 35 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560 - Likewise, for the 2nd fraction, since 35 × 16 = 560,
27/35 = 27 × 16/35 × 16 = 432/560 - Subtract the two like fractions:
630/560 - 432/560 = 630 - 432/560 = 198/560 - After reducing the fraction, the answer is 99/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80-54/35 90/80-27/70 90/80-81/35