Add 30/49 and 12/40
30/49 + 12/40 is 447/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 49 × 40 = 1960,
30/49 = 30 × 40/49 × 40 = 1200/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
12/40 = 12 × 49/40 × 49 = 588/1960 - Add the two like fractions:
1200/1960 + 588/1960 = 1200 + 588/1960 = 1788/1960 - 1788/1960 simplified gives 447/490
- So, 30/49 + 12/40 = 447/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49+12/40 30/49+24/40 30/98+12/40 30/49+12/80 90/49+12/40 30/49+36/40 30/49+60/40 30/49+84/40