Add 35/20 and 7/72
1st number: 1 15/20, 2nd number: 7/72
35/20 + 7/72 is 133/72.
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,
35/20 = 35 × 18/20 × 18 = 630/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Add the two like fractions:
630/360 + 35/360 = 630 + 35/360 = 665/360 - 665/360 simplified gives 133/72
- So, 35/20 + 7/72 = 133/72
In mixed form: 161/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20+7/72 35/20+14/72 35/40+7/72 35/20+21/72 35/60+7/72 35/20+35/72 35/20+49/72