Add 90/98 and 15/64
90/98 + 15/64 is 3615/3136.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 64 is 3136
Next, find the equivalent fraction of both fractional numbers with denominator 3136 - For the 1st fraction, since 98 × 32 = 3136,
90/98 = 90 × 32/98 × 32 = 2880/3136 - Likewise, for the 2nd fraction, since 64 × 49 = 3136,
15/64 = 15 × 49/64 × 49 = 735/3136 - Add the two like fractions:
2880/3136 + 735/3136 = 2880 + 735/3136 = 3615/3136 - So, 90/98 + 15/64 = 3615/3136
In mixed form: 1479/3136
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98+30/64 90/98+45/64 90/98+75/64