Add 90/70 and 50/49
1st number: 1 20/70, 2nd number: 1 1/49
90/70 + 50/49 is 113/49.
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,
90/70 = 90 × 7/70 × 7 = 630/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
50/49 = 50 × 10/49 × 10 = 500/490 - Add the two like fractions:
630/490 + 500/490 = 630 + 500/490 = 1130/490 - 1130/490 simplified gives 113/49
- So, 90/70 + 50/49 = 113/49
In mixed form: 215/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+50/98