Subtract 2/40 from 84/45
1st number: 1 39/45, 2nd number: 2/40
84/45 - 2/40 is 109/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
84/45 = 84 × 8/45 × 8 = 672/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
2/40 = 2 × 9/40 × 9 = 18/360 - Subtract the two like fractions:
672/360 - 18/360 = 672 - 18/360 = 654/360 - After reducing the fraction, the answer is 109/60
- In mixed form: 149/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45-4/40 84/90-2/40 84/45-2/80 84/45-6/40 84/45-10/40 84/45-14/40