Add 18/45 and 12/8
1st number: 18/45, 2nd number: 1 4/8
18/45 + 12/8 is 19/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
18/45 = 18 × 8/45 × 8 = 144/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
12/8 = 12 × 45/8 × 45 = 540/360 - Add the two like fractions:
144/360 + 540/360 = 144 + 540/360 = 684/360 - 684/360 simplified gives 19/10
- So, 18/45 + 12/8 = 19/10
In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+12/8 18/45+24/8 18/90+12/8 18/45+12/16 54/45+12/8 18/45+36/8 18/45+12/24 90/45+12/8 18/45+60/8 18/45+12/40 18/45+84/8 18/45+12/56