Subtract 12/9 from 2/40
1st number: 2/40, 2nd number: 1 3/9
2/40 - 12/9 is -77/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
2/40 = 2 × 9/40 × 9 = 18/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
12/9 = 12 × 40/9 × 40 = 480/360 - Subtract the two like fractions:
18/360 - 480/360 = 18 - 480/360 = -462/360 - After reducing the fraction, the answer is -77/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40-12/9 2/40-24/9 2/80-12/9 2/40-12/18 6/40-12/9 2/40-36/9 2/40-12/27 10/40-12/9 2/40-60/9 2/40-12/45 14/40-12/9 2/40-84/9 2/40-12/63