Add 45/90 and 32/40
45/90 + 32/40 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
45/90 = 45 × 4/90 × 4 = 180/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
32/40 = 32 × 9/40 × 9 = 288/360 - Add the two like fractions:
180/360 + 288/360 = 180 + 288/360 = 468/360 - 468/360 simplified gives 13/10
- So, 45/90 + 32/40 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90+64/40 45/90+32/80 45/90+96/40