Add 90/45 and 80/8
1st number: 2 0/45, 2nd number: 10 0/8
90/45 + 80/8 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
80/8 = 80 × 45/8 × 45 = 3600/360 - Add the two like fractions:
720/360 + 3600/360 = 720 + 3600/360 = 4320/360 - 4320/360 simplified gives 12/1
- So, 90/45 + 80/8 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+80/16 90/45+80/24 90/45+80/40 90/45+80/56