Add 40/5 and 63/90
1st number: 8 0/5, 2nd number: 63/90
40/5 + 63/90 is 87/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
40/5 = 40 × 18/5 × 18 = 720/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Add the two like fractions:
720/90 + 63/90 = 720 + 63/90 = 783/90 - 783/90 simplified gives 87/10
- So, 40/5 + 63/90 = 87/10
In mixed form: 87/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+63/90 40/10+63/90 40/15+63/90 40/25+63/90 40/35+63/90