Add 42/63 and 90/54
1st number: 42/63, 2nd number: 1 36/54
42/63 + 90/54 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
42/63 = 42 × 6/63 × 6 = 252/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
90/54 = 90 × 7/54 × 7 = 630/378 - Add the two like fractions:
252/378 + 630/378 = 252 + 630/378 = 882/378 - 882/378 simplified gives 7/3
- So, 42/63 + 90/54 = 7/3
In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+90/54