Add 90/25 and 70/49
1st number: 3 15/25, 2nd number: 1 21/49
90/25 + 70/49 is 176/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 49 is 1225
Next, find the equivalent fraction of both fractional numbers with denominator 1225 - For the 1st fraction, since 25 × 49 = 1225,
90/25 = 90 × 49/25 × 49 = 4410/1225 - Likewise, for the 2nd fraction, since 49 × 25 = 1225,
70/49 = 70 × 25/49 × 25 = 1750/1225 - Add the two like fractions:
4410/1225 + 1750/1225 = 4410 + 1750/1225 = 6160/1225 - 6160/1225 simplified gives 176/35
- So, 90/25 + 70/49 = 176/35
In mixed form: 51/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50+70/49 90/25+70/98 90/75+70/49