Add 14/40 and 20/45
14/40 + 20/45 is 143/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
14/40 = 14 × 9/40 × 9 = 126/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
20/45 = 20 × 8/45 × 8 = 160/360 - Add the two like fractions:
126/360 + 160/360 = 126 + 160/360 = 286/360 - 286/360 simplified gives 143/180
- So, 14/40 + 20/45 = 143/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/40+20/45 14/40+40/45 14/80+20/45 14/40+20/90 42/40+20/45 14/40+60/45 70/40+20/45 98/40+20/45