Subtract 21/64 from 10/98
10/98 - 21/64 is -709/3136.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 64 is 3136
Next, find the equivalent fraction of both fractional numbers with denominator 3136 - For the 1st fraction, since 98 × 32 = 3136,
10/98 = 10 × 32/98 × 32 = 320/3136 - Likewise, for the 2nd fraction, since 64 × 49 = 3136,
21/64 = 21 × 49/64 × 49 = 1029/3136 - Subtract the two like fractions:
320/3136 - 1029/3136 = 320 - 1029/3136 = -709/3136
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/98-21/64 10/98-42/64 30/98-21/64 10/98-63/64 50/98-21/64 70/98-21/64