Add 80/14 and 90/42
1st number: 5 10/14, 2nd number: 2 6/42
80/14 + 90/42 is 55/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
80/14 = 80 × 3/14 × 3 = 240/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
90/42 = 90 × 1/42 × 1 = 90/42 - Add the two like fractions:
240/42 + 90/42 = 240 + 90/42 = 330/42 - 330/42 simplified gives 55/7
- So, 80/14 + 90/42 = 55/7
In mixed form: 76/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+90/42 80/14+90/84 80/42+90/42 80/70+90/42 80/98+90/42