Add 7/45 and 20/10
1st number: 7/45, 2nd number: 2 0/10
7/45 + 20/10 is 97/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
7/45 = 7 × 2/45 × 2 = 14/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
20/10 = 20 × 9/10 × 9 = 180/90 - Add the two like fractions:
14/90 + 180/90 = 14 + 180/90 = 194/90 - 194/90 simplified gives 97/45
- So, 7/45 + 20/10 = 97/45
In mixed form: 27/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+20/10 7/45+40/10 7/90+20/10 21/45+20/10 7/45+60/10 7/45+20/30 35/45+20/10 7/45+20/50 49/45+20/10 7/45+20/70