Subtract 40/16 from 7/30
1st number: 7/30, 2nd number: 2 8/16
7/30 - 40/16 is -34/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
7/30 = 7 × 8/30 × 8 = 56/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
40/16 = 40 × 15/16 × 15 = 600/240 - Subtract the two like fractions:
56/240 - 600/240 = 56 - 600/240 = -544/240 - After reducing the fraction, the answer is -34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-40/16 7/30-80/16 7/60-40/16 7/30-40/32 21/30-40/16 7/90-40/16 7/30-40/48 35/30-40/16 7/30-40/80 49/30-40/16