Add 1/90 and 70/49
1st number: 1/90, 2nd number: 1 21/49
1/90 + 70/49 is 907/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
1/90 = 1 × 49/90 × 49 = 49/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
70/49 = 70 × 90/49 × 90 = 6300/4410 - Add the two like fractions:
49/4410 + 6300/4410 = 49 + 6300/4410 = 6349/4410 - 6349/4410 simplified gives 907/630
- So, 1/90 + 70/49 = 907/630
In mixed form: 1277/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90+70/49 1/90+70/98 3/90+70/49 5/90+70/49 7/90+70/49