Add 1/45 and 60/40
1st number: 1/45, 2nd number: 1 20/40
1/45 + 60/40 is 137/90.
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,
1/45 = 1 × 8/45 × 8 = 8/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
60/40 = 60 × 9/40 × 9 = 540/360 - Add the two like fractions:
8/360 + 540/360 = 8 + 540/360 = 548/360 - 548/360 simplified gives 137/90
- So, 1/45 + 60/40 = 137/90
In mixed form: 147/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45+60/40 1/90+60/40 1/45+60/80 3/45+60/40 5/45+60/40 7/45+60/40