Add 12/40 and 5/72
12/40 + 5/72 is 133/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
12/40 = 12 × 9/40 × 9 = 108/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
5/72 = 5 × 5/72 × 5 = 25/360 - Add the two like fractions:
108/360 + 25/360 = 108 + 25/360 = 133/360 - So, 12/40 + 5/72 = 133/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+5/72 12/40+10/72 12/80+5/72 36/40+5/72 12/40+15/72 60/40+5/72 12/40+25/72 84/40+5/72 12/40+35/72