Add 15/40 and 20/32
15/40 + 20/32 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 40 × 4 = 160,
15/40 = 15 × 4/40 × 4 = 60/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
20/32 = 20 × 5/32 × 5 = 100/160 - Add the two like fractions:
60/160 + 100/160 = 60 + 100/160 = 160/160 - 160/160 simplified gives 1/1
- So, 15/40 + 20/32 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40+20/32 15/40+40/32 15/80+20/32 15/40+20/64 45/40+20/32 15/40+60/32 15/40+20/96 75/40+20/32