Add 90/5 and 70/42
1st number: 18 0/5, 2nd number: 1 28/42
90/5 + 70/42 is 59/3.
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,
70/42 = 70 × 5/42 × 5 = 350/210 - Add the two like fractions:
3780/210 + 350/210 = 3780 + 350/210 = 4130/210 - 4130/210 simplified gives 59/3
- So, 90/5 + 70/42 = 59/3
In mixed form: 192/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+70/42 90/5+70/84 90/15+70/42 90/25+70/42 90/35+70/42