Add 15/10 and 2/84
1st number: 1 5/10, 2nd number: 2/84
15/10 + 2/84 is 32/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
15/10 = 15 × 42/10 × 42 = 630/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
2/84 = 2 × 5/84 × 5 = 10/420 - Add the two like fractions:
630/420 + 10/420 = 630 + 10/420 = 640/420 - 640/420 simplified gives 32/21
- So, 15/10 + 2/84 = 32/21
In mixed form: 111/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+2/84 15/10+4/84 15/20+2/84 45/10+2/84 15/10+6/84 15/30+2/84 75/10+2/84 15/10+10/84 15/50+2/84 15/10+14/84 15/70+2/84