Add 90/63 and 42/24
1st number: 1 27/63, 2nd number: 1 18/24
90/63 + 42/24 is 89/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 24 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Likewise, for the 2nd fraction, since 24 × 21 = 504,
42/24 = 42 × 21/24 × 21 = 882/504 - Add the two like fractions:
720/504 + 882/504 = 720 + 882/504 = 1602/504 - 1602/504 simplified gives 89/28
- So, 90/63 + 42/24 = 89/28
In mixed form: 35/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63+84/24 90/63+42/48 90/63+42/72