Subtract 9/30 from 16/80
16/80 - 9/30 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
16/80 = 16 × 3/80 × 3 = 48/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
9/30 = 9 × 8/30 × 8 = 72/240 - Subtract the two like fractions:
48/240 - 72/240 = 48 - 72/240 = -24/240 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/80-9/30 16/80-18/30 16/80-9/60 48/80-9/30 16/80-27/30 16/80-9/90 16/80-45/30 16/80-63/30