Add 7/20 and 49/72
7/20 + 49/72 is 371/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
7/20 = 7 × 18/20 × 18 = 126/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
49/72 = 49 × 5/72 × 5 = 245/360 - Add the two like fractions:
126/360 + 245/360 = 126 + 245/360 = 371/360 - So, 7/20 + 49/72 = 371/360
In mixed form: 111/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+49/72 7/20+98/72 7/40+49/72 21/20+49/72 7/60+49/72 35/20+49/72 49/20+49/72