Subtract 48/27 from 40/30
1st number: 1 10/30, 2nd number: 1 21/27
40/30 - 48/27 is -4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
40/30 = 40 × 9/30 × 9 = 360/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
48/27 = 48 × 10/27 × 10 = 480/270 - Subtract the two like fractions:
360/270 - 480/270 = 360 - 480/270 = -120/270 - After reducing the fraction, the answer is -4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-48/27 40/30-96/27 40/60-48/27 40/30-48/54 40/90-48/27 40/30-48/81