Add 2/45 and 18/40
2/45 + 18/40 is 89/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
2/45 = 2 × 8/45 × 8 = 16/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Add the two like fractions:
16/360 + 162/360 = 16 + 162/360 = 178/360 - 178/360 simplified gives 89/180
- So, 2/45 + 18/40 = 89/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45+18/40 2/45+36/40 2/90+18/40 2/45+18/80 6/45+18/40 2/45+54/40 10/45+18/40 2/45+90/40 14/45+18/40