Subtract 1/32 from 70/90
70/90 - 1/32 is 215/288.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
70/90 = 70 × 16/90 × 16 = 1120/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
1/32 = 1 × 45/32 × 45 = 45/1440 - Subtract the two like fractions:
1120/1440 - 45/1440 = 1120 - 45/1440 = 1075/1440 - After reducing the fraction, the answer is 215/288
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90-2/32 70/90-1/64 70/90-3/32 70/90-1/96 70/90-5/32 70/90-7/32