Subtract 1/10 from 1/45
1/45 - 1/10 is -7/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
1/10 = 1 × 9/10 × 9 = 9/90 - Subtract the two like fractions:
2/90 - 9/90 = 2 - 9/90 = -7/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45-1/10 1/45-2/10 1/90-1/10 1/45-1/20 3/45-1/10 1/45-3/10 1/45-1/30 5/45-1/10 1/45-5/10 1/45-1/50 7/45-1/10 1/45-7/10 1/45-1/70