Add 81/5 and 8/90
1st number: 16 1/5, 2nd number: 8/90
81/5 + 8/90 is 733/45.
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,
81/5 = 81 × 18/5 × 18 = 1458/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Add the two like fractions:
1458/90 + 8/90 = 1458 + 8/90 = 1466/90 - 1466/90 simplified gives 733/45
- So, 81/5 + 8/90 = 733/45
In mixed form: 1613/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5+16/90 81/10+8/90 81/5+24/90 81/15+8/90 81/5+40/90 81/25+8/90 81/5+56/90 81/35+8/90