Add 7/24 and 25/21
1st number: 7/24, 2nd number: 1 4/21
7/24 + 25/21 is 83/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
7/24 = 7 × 7/24 × 7 = 49/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
25/21 = 25 × 8/21 × 8 = 200/168 - Add the two like fractions:
49/168 + 200/168 = 49 + 200/168 = 249/168 - 249/168 simplified gives 83/56
- So, 7/24 + 25/21 = 83/56
In mixed form: 127/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/24+25/21 7/24+50/21 7/48+25/21 7/24+25/42 21/24+25/21 7/24+75/21 7/72+25/21 7/24+25/63 35/24+25/21 49/24+25/21