Add 20/45 and 45/32
1st number: 20/45, 2nd number: 1 13/32
20/45 + 45/32 is 533/288.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 45 × 32 = 1440,
20/45 = 20 × 32/45 × 32 = 640/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
45/32 = 45 × 45/32 × 45 = 2025/1440 - Add the two like fractions:
640/1440 + 2025/1440 = 640 + 2025/1440 = 2665/1440 - 2665/1440 simplified gives 533/288
- So, 20/45 + 45/32 = 533/288
In mixed form: 1245/288
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+45/32 20/45+90/32 20/90+45/32 20/45+45/64 60/45+45/32 20/45+45/96