Add 6/45 and 7/20
6/45 + 7/20 is 29/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
6/45 = 6 × 4/45 × 4 = 24/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
7/20 = 7 × 9/20 × 9 = 63/180 - Add the two like fractions:
24/180 + 63/180 = 24 + 63/180 = 87/180 - 87/180 simplified gives 29/60
- So, 6/45 + 7/20 = 29/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/45+7/20 6/45+14/20 6/90+7/20 6/45+7/40 18/45+7/20 6/45+21/20 6/45+7/60 30/45+7/20 6/45+35/20 42/45+7/20 6/45+49/20