Add 90/30 and 81/49
1st number: 3 0/30, 2nd number: 1 32/49
90/30 + 81/49 is 228/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 49 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
90/30 = 90 × 49/30 × 49 = 4410/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
81/49 = 81 × 30/49 × 30 = 2430/1470 - Add the two like fractions:
4410/1470 + 2430/1470 = 4410 + 2430/1470 = 6840/1470 - 6840/1470 simplified gives 228/49
- So, 90/30 + 81/49 = 228/49
In mixed form: 432/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+81/49 90/30+81/98