Add 25/36 and 16/45
25/36 + 16/45 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
25/36 = 25 × 5/36 × 5 = 125/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
16/45 = 16 × 4/45 × 4 = 64/180 - Add the two like fractions:
125/180 + 64/180 = 125 + 64/180 = 189/180 - 189/180 simplified gives 21/20
- So, 25/36 + 16/45 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/36+16/45 25/36+32/45 25/72+16/45 25/36+16/90 75/36+16/45 25/36+48/45 25/36+80/45