Add 42/5 and 90/64
1st number: 8 2/5, 2nd number: 1 26/64
42/5 + 90/64 is 1569/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 5 × 64 = 320,
42/5 = 42 × 64/5 × 64 = 2688/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
90/64 = 90 × 5/64 × 5 = 450/320 - Add the two like fractions:
2688/320 + 450/320 = 2688 + 450/320 = 3138/320 - 3138/320 simplified gives 1569/160
- So, 42/5 + 90/64 = 1569/160
In mixed form: 9129/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+90/64 42/10+90/64 42/15+90/64 42/25+90/64 42/35+90/64