Add 5/18 and 56/40
1st number: 5/18, 2nd number: 1 16/40
5/18 + 56/40 is 151/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
5/18 = 5 × 20/18 × 20 = 100/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
56/40 = 56 × 9/40 × 9 = 504/360 - Add the two like fractions:
100/360 + 504/360 = 100 + 504/360 = 604/360 - 604/360 simplified gives 151/90
- So, 5/18 + 56/40 = 151/90
In mixed form: 161/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+56/40 5/36+56/40 5/18+56/80 15/18+56/40 5/54+56/40 25/18+56/40 5/90+56/40 35/18+56/40