Subtract 49/8 from 42/50
1st number: 42/50, 2nd number: 6 1/8
42/50 - 49/8 is -1057/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
42/50 = 42 × 4/50 × 4 = 168/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
49/8 = 49 × 25/8 × 25 = 1225/200 - Subtract the two like fractions:
168/200 - 1225/200 = 168 - 1225/200 = -1057/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50-49/8 42/50-98/8 42/50-49/16 42/50-49/24 42/50-49/40 42/50-49/56