Add 70/32 and 80/90
1st number: 2 6/32, 2nd number: 80/90
70/32 + 80/90 is 443/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 90 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
70/32 = 70 × 45/32 × 45 = 3150/1440 - Likewise, for the 2nd fraction, since 90 × 16 = 1440,
80/90 = 80 × 16/90 × 16 = 1280/1440 - Add the two like fractions:
3150/1440 + 1280/1440 = 3150 + 1280/1440 = 4430/1440 - 4430/1440 simplified gives 443/144
- So, 70/32 + 80/90 = 443/144
In mixed form: 311/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/64+80/90 70/96+80/90