Add 15/2 and 10/84
1st number: 7 1/2, 2nd number: 10/84
15/2 + 10/84 is 160/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
15/2 = 15 × 42/2 × 42 = 630/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
10/84 = 10 × 1/84 × 1 = 10/84 - Add the two like fractions:
630/84 + 10/84 = 630 + 10/84 = 640/84 - 640/84 simplified gives 160/21
- So, 15/2 + 10/84 = 160/21
In mixed form: 713/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+10/84 15/2+20/84 15/4+10/84 45/2+10/84 15/2+30/84 15/6+10/84 75/2+10/84 15/2+50/84 15/10+10/84 15/2+70/84 15/14+10/84