Subtract 98/10 from 70/8
1st number: 8 6/8, 2nd number: 9 8/10
70/8 - 98/10 is -21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
70/8 = 70 × 5/8 × 5 = 350/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
98/10 = 98 × 4/10 × 4 = 392/40 - Subtract the two like fractions:
350/40 - 392/40 = 350 - 392/40 = -42/40 - After reducing the fraction, the answer is -21/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/16-98/10 70/8-98/20 70/24-98/10 70/8-98/30 70/40-98/10 70/8-98/50 70/56-98/10 70/8-98/70