Add 7/10 and 40/84
7/10 + 40/84 is 247/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
7/10 = 7 × 42/10 × 42 = 294/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420 - Add the two like fractions:
294/420 + 200/420 = 294 + 200/420 = 494/420 - 494/420 simplified gives 247/210
- So, 7/10 + 40/84 = 247/210
In mixed form: 137/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10+40/84 7/10+80/84 7/20+40/84 21/10+40/84 7/30+40/84 35/10+40/84 7/50+40/84 49/10+40/84 7/70+40/84