Add 1/40 and 2/45
1/40 + 2/45 is 5/72.
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,
1/40 = 1 × 9/40 × 9 = 9/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
2/45 = 2 × 8/45 × 8 = 16/360 - Add the two like fractions:
9/360 + 16/360 = 9 + 16/360 = 25/360 - 25/360 simplified gives 5/72
- So, 1/40 + 2/45 = 5/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40+2/45 1/40+4/45 1/80+2/45 1/40+2/90 3/40+2/45 1/40+6/45 5/40+2/45 1/40+10/45 7/40+2/45 1/40+14/45