Add 36/72 and 7/20
36/72 + 7/20 is 17/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
36/72 = 36 × 5/72 × 5 = 180/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
7/20 = 7 × 18/20 × 18 = 126/360 - Add the two like fractions:
180/360 + 126/360 = 180 + 126/360 = 306/360 - 306/360 simplified gives 17/20
- So, 36/72 + 7/20 = 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+14/20 36/72+7/40 36/72+21/20 36/72+7/60 36/72+35/20 36/72+49/20