Add 90/8 and 40/4
1st number: 11 2/8, 2nd number: 10 0/4
90/8 + 40/4 is 85/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 4 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 8 × 1 = 8,
90/8 = 90 × 1/8 × 1 = 90/8 - Likewise, for the 2nd fraction, since 4 × 2 = 8,
40/4 = 40 × 2/4 × 2 = 80/8 - Add the two like fractions:
90/8 + 80/8 = 90 + 80/8 = 170/8 - 170/8 simplified gives 85/4
- So, 90/8 + 40/4 = 85/4
In mixed form: 211/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+80/4 90/16+40/4 90/8+40/8 90/24+40/4 90/8+40/12 90/40+40/4 90/8+40/20 90/56+40/4 90/8+40/28