Subtract 30/81 from 16/35
16/35 - 30/81 is 82/945.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 81 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 35 × 81 = 2835,
16/35 = 16 × 81/35 × 81 = 1296/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
30/81 = 30 × 35/81 × 35 = 1050/2835 - Subtract the two like fractions:
1296/2835 - 1050/2835 = 1296 - 1050/2835 = 246/2835 - After reducing the fraction, the answer is 82/945
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/35-30/81 16/35-60/81 16/70-30/81 48/35-30/81 16/35-90/81 80/35-30/81