Add 18/8 and 90/10
1st number: 2 2/8, 2nd number: 9 0/10
18/8 + 90/10 is 45/4.
Steps for adding 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,
18/8 = 18 × 5/8 × 5 = 90/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
90/10 = 90 × 4/10 × 4 = 360/40 - Add the two like fractions:
90/40 + 360/40 = 90 + 360/40 = 450/40 - 450/40 simplified gives 45/4
- So, 18/8 + 90/10 = 45/4
In mixed form: 111/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+90/10 18/16+90/10 18/8+90/20 54/8+90/10 18/24+90/10 18/8+90/30 90/8+90/10 18/40+90/10 18/8+90/50 18/56+90/10 18/8+90/70