Add 36/70 and 30/40
36/70 + 30/40 is 177/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
36/70 = 36 × 4/70 × 4 = 144/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Add the two like fractions:
144/280 + 210/280 = 144 + 210/280 = 354/280 - 354/280 simplified gives 177/140
- So, 36/70 + 30/40 = 177/140
In mixed form: 137/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+30/40 36/70+60/40 36/70+30/80 36/70+90/40