Add 4/90 and 80/10
1st number: 4/90, 2nd number: 8 0/10
4/90 + 80/10 is 362/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
80/10 = 80 × 9/10 × 9 = 720/90 - Add the two like fractions:
4/90 + 720/90 = 4 + 720/90 = 724/90 - 724/90 simplified gives 362/45
- So, 4/90 + 80/10 = 362/45
In mixed form: 82/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90+80/10 4/90+80/20 12/90+80/10 4/90+80/30 20/90+80/10 4/90+80/50 28/90+80/10 4/90+80/70