Subtract 48/27 from 7/84
1st number: 7/84, 2nd number: 1 21/27
7/84 - 48/27 is -61/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
7/84 = 7 × 9/84 × 9 = 63/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
48/27 = 48 × 28/27 × 28 = 1344/756 - Subtract the two like fractions:
63/756 - 1344/756 = 63 - 1344/756 = -1281/756 - After reducing the fraction, the answer is -61/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84-48/27 7/84-96/27 7/84-48/54 21/84-48/27 7/84-48/81 35/84-48/27 49/84-48/27