Add 84/15 and 14/42
1st number: 5 9/15, 2nd number: 14/42
84/15 + 14/42 is 89/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
84/15 = 84 × 14/15 × 14 = 1176/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
14/42 = 14 × 5/42 × 5 = 70/210 - Add the two like fractions:
1176/210 + 70/210 = 1176 + 70/210 = 1246/210 - 1246/210 simplified gives 89/15
- So, 84/15 + 14/42 = 89/15
In mixed form: 514/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+28/42 84/30+14/42 84/15+14/84 84/45+14/42 84/15+70/42 84/75+14/42 84/15+98/42