Add 21/27 and 45/50
21/27 + 45/50 is 151/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 50 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 27 × 50 = 1350,
21/27 = 21 × 50/27 × 50 = 1050/1350 - Likewise, for the 2nd fraction, since 50 × 27 = 1350,
45/50 = 45 × 27/50 × 27 = 1215/1350 - Add the two like fractions:
1050/1350 + 1215/1350 = 1050 + 1215/1350 = 2265/1350 - 2265/1350 simplified gives 151/90
- So, 21/27 + 45/50 = 151/90
In mixed form: 161/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27+45/50 21/27+90/50 21/54+45/50 63/27+45/50 21/81+45/50