Subtract 60/40 from 21/9
1st number: 2 3/9, 2nd number: 1 20/40
21/9 - 60/40 is 5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
21/9 = 21 × 40/9 × 40 = 840/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
60/40 = 60 × 9/40 × 9 = 540/360 - Subtract the two like fractions:
840/360 - 540/360 = 840 - 540/360 = 300/360 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9-60/40 21/18-60/40 21/9-60/80 63/9-60/40 21/27-60/40 21/45-60/40 21/63-60/40