Add 42/90 and 63/27
1st number: 42/90, 2nd number: 2 9/27
42/90 + 63/27 is 14/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
42/90 = 42 × 3/90 × 3 = 126/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
63/27 = 63 × 10/27 × 10 = 630/270 - Add the two like fractions:
126/270 + 630/270 = 126 + 630/270 = 756/270 - 756/270 simplified gives 14/5
- So, 42/90 + 63/27 = 14/5
In mixed form: 24/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+63/27 42/90+63/54 42/90+63/81