Add 18/32 and 36/90
18/32 + 36/90 is 77/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 90 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
18/32 = 18 × 45/32 × 45 = 810/1440 - Likewise, for the 2nd fraction, since 90 × 16 = 1440,
36/90 = 36 × 16/90 × 16 = 576/1440 - Add the two like fractions:
810/1440 + 576/1440 = 810 + 576/1440 = 1386/1440 - 1386/1440 simplified gives 77/80
- So, 18/32 + 36/90 = 77/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/32+36/90 18/32+72/90 18/64+36/90 54/32+36/90 18/96+36/90 90/32+36/90