Add 70/30 and 84/56
1st number: 2 10/30, 2nd number: 1 28/56
70/30 + 84/56 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
70/30 = 70 × 28/30 × 28 = 1960/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
84/56 = 84 × 15/56 × 15 = 1260/840 - Add the two like fractions:
1960/840 + 1260/840 = 1960 + 1260/840 = 3220/840 - 3220/840 simplified gives 23/6
- So, 70/30 + 84/56 = 23/6
In mixed form: 35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60+84/56 70/90+84/56