Add 40/5 and 90/8
1st number: 8 0/5, 2nd number: 11 2/8
40/5 + 90/8 is 77/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
40/5 = 40 × 8/5 × 8 = 320/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
90/8 = 90 × 5/8 × 5 = 450/40 - Add the two like fractions:
320/40 + 450/40 = 320 + 450/40 = 770/40 - 770/40 simplified gives 77/4
- So, 40/5 + 90/8 = 77/4
In mixed form: 191/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+90/8 40/10+90/8 40/5+90/16 40/15+90/8 40/5+90/24 40/25+90/8 40/5+90/40 40/35+90/8 40/5+90/56