Add 30/70 and 10/49
30/70 + 10/49 is 31/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
30/70 = 30 × 7/70 × 7 = 210/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
10/49 = 10 × 10/49 × 10 = 100/490 - Add the two like fractions:
210/490 + 100/490 = 210 + 100/490 = 310/490 - 310/490 simplified gives 31/49
- So, 30/70 + 10/49 = 31/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+10/49 30/70+20/49 30/70+10/98 90/70+10/49 30/70+30/49 30/70+50/49 30/70+70/49