Subtract 49/81 from 63/30
1st number: 2 3/30, 2nd number: 49/81
63/30 - 49/81 is 1211/810.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
63/30 = 63 × 27/30 × 27 = 1701/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
49/81 = 49 × 10/81 × 10 = 490/810 - Subtract the two like fractions:
1701/810 - 490/810 = 1701 - 490/810 = 1211/810 - In mixed form: 1401/810
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/30-98/81 63/60-49/81 63/90-49/81