Add 7/49 and 70/90
7/49 + 70/90 is 58/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
7/49 = 7 × 90/49 × 90 = 630/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
70/90 = 70 × 49/90 × 49 = 3430/4410 - Add the two like fractions:
630/4410 + 3430/4410 = 630 + 3430/4410 = 4060/4410 - 4060/4410 simplified gives 58/63
- So, 7/49 + 70/90 = 58/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/49+70/90 7/98+70/90 21/49+70/90 35/49+70/90