Add 21/40 and 5/36
21/40 + 5/36 is 239/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
21/40 = 21 × 9/40 × 9 = 189/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
5/36 = 5 × 10/36 × 10 = 50/360 - Add the two like fractions:
189/360 + 50/360 = 189 + 50/360 = 239/360 - So, 21/40 + 5/36 = 239/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40+5/36 21/40+10/36 21/80+5/36 21/40+5/72 63/40+5/36 21/40+15/36 21/40+25/36 21/40+35/36