Add 48/9 and 8/21
1st number: 5 3/9, 2nd number: 8/21
48/9 + 8/21 is 40/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
48/9 = 48 × 7/9 × 7 = 336/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
8/21 = 8 × 3/21 × 3 = 24/63 - Add the two like fractions:
336/63 + 24/63 = 336 + 24/63 = 360/63 - 360/63 simplified gives 40/7
- So, 48/9 + 8/21 = 40/7
In mixed form: 55/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/9+8/21 48/9+16/21 48/18+8/21 48/9+8/42 48/9+24/21 48/27+8/21 48/9+8/63 48/9+40/21 48/45+8/21 48/9+56/21 48/63+8/21