Add 90/5 and 2/7
1st number: 18 0/5, 2nd number: 2/7
90/5 + 2/7 is 128/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
90/5 = 90 × 7/5 × 7 = 630/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
2/7 = 2 × 5/7 × 5 = 10/35 - Add the two like fractions:
630/35 + 10/35 = 630 + 10/35 = 640/35 - 640/35 simplified gives 128/7
- So, 90/5 + 2/7 = 128/7
In mixed form: 182/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5+4/7 90/10+2/7 90/5+2/14 90/5+6/7 90/15+2/7 90/5+2/21 90/5+10/7 90/25+2/7 90/5+2/35 90/5+14/7 90/35+2/7 90/5+2/49