Add 64/90 and 70/48
1st number: 64/90, 2nd number: 1 22/48
64/90 + 70/48 is 781/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
64/90 = 64 × 8/90 × 8 = 512/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
70/48 = 70 × 15/48 × 15 = 1050/720 - Add the two like fractions:
512/720 + 1050/720 = 512 + 1050/720 = 1562/720 - 1562/720 simplified gives 781/360
- So, 64/90 + 70/48 = 781/360
In mixed form: 261/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/90+70/96