Add 80/8 and 8/90
1st number: 10 0/8, 2nd number: 8/90
80/8 + 8/90 is 454/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
80/8 = 80 × 45/8 × 45 = 3600/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
8/90 = 8 × 4/90 × 4 = 32/360 - Add the two like fractions:
3600/360 + 32/360 = 3600 + 32/360 = 3632/360 - 3632/360 simplified gives 454/45
- So, 80/8 + 8/90 = 454/45
In mixed form: 104/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+16/90 80/16+8/90 80/8+24/90 80/24+8/90 80/8+40/90 80/40+8/90 80/8+56/90 80/56+8/90