Add 7/70 and 45/84
7/70 + 45/84 is 89/140.
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,
7/70 = 7 × 6/70 × 6 = 42/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
45/84 = 45 × 5/84 × 5 = 225/420 - Add the two like fractions:
42/420 + 225/420 = 42 + 225/420 = 267/420 - 267/420 simplified gives 89/140
- So, 7/70 + 45/84 = 89/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70+45/84 7/70+90/84 21/70+45/84 35/70+45/84 49/70+45/84