Add 1/45 and 40/80
1/45 + 40/80 is 47/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
1/45 = 1 × 16/45 × 16 = 16/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
40/80 = 40 × 9/80 × 9 = 360/720 - Add the two like fractions:
16/720 + 360/720 = 16 + 360/720 = 376/720 - 376/720 simplified gives 47/90
- So, 1/45 + 40/80 = 47/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45+40/80 1/90+40/80 3/45+40/80 5/45+40/80 7/45+40/80