Add 24/21 and 42/4
1st number: 1 3/21, 2nd number: 10 2/4
24/21 + 42/4 is 163/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
24/21 = 24 × 4/21 × 4 = 96/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
42/4 = 42 × 21/4 × 21 = 882/84 - Add the two like fractions:
96/84 + 882/84 = 96 + 882/84 = 978/84 - 978/84 simplified gives 163/14
- So, 24/21 + 42/4 = 163/14
In mixed form: 119/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+42/4 24/21+84/4 24/42+42/4 24/21+42/8 72/21+42/4 24/63+42/4 24/21+42/12 24/21+42/20 24/21+42/28