Add 18/5 and 90/16
1st number: 3 3/5, 2nd number: 5 10/16
18/5 + 90/16 is 369/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
18/5 = 18 × 16/5 × 16 = 288/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
90/16 = 90 × 5/16 × 5 = 450/80 - Add the two like fractions:
288/80 + 450/80 = 288 + 450/80 = 738/80 - 738/80 simplified gives 369/40
- So, 18/5 + 90/16 = 369/40
In mixed form: 99/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+90/16 18/10+90/16 18/5+90/32 54/5+90/16 18/15+90/16 18/5+90/48 90/5+90/16 18/25+90/16 18/5+90/80 18/35+90/16