Add 72/30 and 35/84
1st number: 2 12/30, 2nd number: 35/84
72/30 + 35/84 is 169/60.
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,
72/30 = 72 × 14/30 × 14 = 1008/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
35/84 = 35 × 5/84 × 5 = 175/420 - Add the two like fractions:
1008/420 + 175/420 = 1008 + 175/420 = 1183/420 - 1183/420 simplified gives 169/60
- So, 72/30 + 35/84 = 169/60
In mixed form: 249/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30+70/84 72/60+35/84 72/90+35/84