Add 15/84 and 49/10
1st number: 15/84, 2nd number: 4 9/10
15/84 + 49/10 is 711/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
49/10 = 49 × 42/10 × 42 = 2058/420 - Add the two like fractions:
75/420 + 2058/420 = 75 + 2058/420 = 2133/420 - 2133/420 simplified gives 711/140
- So, 15/84 + 49/10 = 711/140
In mixed form: 511/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+49/10 15/84+98/10 15/84+49/20 45/84+49/10 15/84+49/30 75/84+49/10 15/84+49/50 15/84+49/70