Add 40/90 and 27/40
40/90 + 27/40 is 403/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
40/90 = 40 × 4/90 × 4 = 160/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
27/40 = 27 × 9/40 × 9 = 243/360 - Add the two like fractions:
160/360 + 243/360 = 160 + 243/360 = 403/360 - So, 40/90 + 27/40 = 403/360
In mixed form: 143/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90+27/40 40/90+54/40 40/90+27/80 40/90+81/40