Add 18/60 and 90/27
1st number: 18/60, 2nd number: 3 9/27
18/60 + 90/27 is 109/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
18/60 = 18 × 9/60 × 9 = 162/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
90/27 = 90 × 20/27 × 20 = 1800/540 - Add the two like fractions:
162/540 + 1800/540 = 162 + 1800/540 = 1962/540 - 1962/540 simplified gives 109/30
- So, 18/60 + 90/27 = 109/30
In mixed form: 319/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/60+90/27 18/60+90/54 54/60+90/27 18/60+90/81 90/60+90/27