Add 90/5 and 7/42
1st number: 18 0/5, 2nd number: 7/42
90/5 + 7/42 is 109/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
90/5 = 90 × 42/5 × 42 = 3780/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
7/42 = 7 × 5/42 × 5 = 35/210 - Add the two like fractions:
3780/210 + 35/210 = 3780 + 35/210 = 3815/210 - 3815/210 simplified gives 109/6
- So, 90/5 + 7/42 = 109/6
In mixed form: 181/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5+14/42 90/10+7/42 90/5+7/84 90/5+21/42 90/15+7/42 90/5+35/42 90/25+7/42 90/5+49/42 90/35+7/42