Add 7/90 and 25/28
7/90 + 25/28 is 1223/1260.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
7/90 = 7 × 14/90 × 14 = 98/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
25/28 = 25 × 45/28 × 45 = 1125/1260 - Add the two like fractions:
98/1260 + 1125/1260 = 98 + 1125/1260 = 1223/1260 - So, 7/90 + 25/28 = 1223/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+25/28 7/90+50/28 7/90+25/56 21/90+25/28 7/90+75/28 7/90+25/84 35/90+25/28 49/90+25/28