Add 7/84 and 24/20
1st number: 7/84, 2nd number: 1 4/20
7/84 + 24/20 is 77/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
7/84 = 7 × 5/84 × 5 = 35/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
24/20 = 24 × 21/20 × 21 = 504/420 - Add the two like fractions:
35/420 + 504/420 = 35 + 504/420 = 539/420 - 539/420 simplified gives 77/60
- So, 7/84 + 24/20 = 77/60
In mixed form: 117/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84+24/20 7/84+48/20 7/84+24/40 21/84+24/20 7/84+72/20 7/84+24/60 35/84+24/20 49/84+24/20