Add 27/18 and 10/40
1st number: 1 9/18, 2nd number: 10/40
27/18 + 10/40 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
27/18 = 27 × 20/18 × 20 = 540/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
10/40 = 10 × 9/40 × 9 = 90/360 - Add the two like fractions:
540/360 + 90/360 = 540 + 90/360 = 630/360 - 630/360 simplified gives 7/4
- So, 27/18 + 10/40 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+10/40 27/18+20/40 27/36+10/40 27/18+10/80 81/18+10/40 27/18+30/40 27/54+10/40 27/18+50/40 27/90+10/40 27/18+70/40