Add 27/70 and 90/84
1st number: 27/70, 2nd number: 1 6/84
27/70 + 90/84 is 51/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
27/70 = 27 × 6/70 × 6 = 162/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
162/420 + 450/420 = 162 + 450/420 = 612/420 - 612/420 simplified gives 51/35
- So, 27/70 + 90/84 = 51/35
In mixed form: 116/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70+90/84 81/70+90/84