Add 1/70 and 90/84
1st number: 1/70, 2nd number: 1 6/84
1/70 + 90/84 is 38/35.
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,
1/70 = 1 × 6/70 × 6 = 6/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
6/420 + 450/420 = 6 + 450/420 = 456/420 - 456/420 simplified gives 38/35
- So, 1/70 + 90/84 = 38/35
In mixed form: 13/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+90/84 3/70+90/84 5/70+90/84 7/70+90/84