Add 70/30 and 48/84
1st number: 2 10/30, 2nd number: 48/84
70/30 + 48/84 is 61/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
70/30 = 70 × 14/30 × 14 = 980/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
48/84 = 48 × 5/84 × 5 = 240/420 - Add the two like fractions:
980/420 + 240/420 = 980 + 240/420 = 1220/420 - 1220/420 simplified gives 61/21
- So, 70/30 + 48/84 = 61/21
In mixed form: 219/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+96/84 70/60+48/84 70/90+48/84