Subtract 63/8 from 49/70
1st number: 49/70, 2nd number: 7 7/8
49/70 - 63/8 is -287/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
49/70 = 49 × 4/70 × 4 = 196/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
63/8 = 63 × 35/8 × 35 = 2205/280 - Subtract the two like fractions:
196/280 - 2205/280 = 196 - 2205/280 = -2009/280 - After reducing the fraction, the answer is -287/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70-63/8 49/70-63/16 49/70-63/24 49/70-63/40 49/70-63/56