Add 72/45 and 8/10
1st number: 1 27/45, 2nd number: 8/10
72/45 + 8/10 is 12/5.
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,
72/45 = 72 × 2/45 × 2 = 144/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
8/10 = 8 × 9/10 × 9 = 72/90 - Add the two like fractions:
144/90 + 72/90 = 144 + 72/90 = 216/90 - 216/90 simplified gives 12/5
- So, 72/45 + 8/10 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+16/10 72/90+8/10 72/45+8/20 72/45+24/10 72/45+8/30 72/45+40/10 72/45+8/50 72/45+56/10 72/45+8/70