Add 90/84 and 63/10
1st number: 1 6/84, 2nd number: 6 3/10
90/84 + 63/10 is 258/35.
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,
90/84 = 90 × 5/84 × 5 = 450/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
63/10 = 63 × 42/10 × 42 = 2646/420 - Add the two like fractions:
450/420 + 2646/420 = 450 + 2646/420 = 3096/420 - 3096/420 simplified gives 258/35
- So, 90/84 + 63/10 = 258/35
In mixed form: 713/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+63/20 90/84+63/30 90/84+63/50 90/84+63/70