Add 70/90 and 49/16
1st number: 70/90, 2nd number: 3 1/16
70/90 + 49/16 is 553/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
70/90 = 70 × 8/90 × 8 = 560/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
49/16 = 49 × 45/16 × 45 = 2205/720 - Add the two like fractions:
560/720 + 2205/720 = 560 + 2205/720 = 2765/720 - 2765/720 simplified gives 553/144
- So, 70/90 + 49/16 = 553/144
In mixed form: 3121/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+98/16 70/90+49/32 70/90+49/48 70/90+49/80