Add 21/7 and 45/16
1st number: 3 0/7, 2nd number: 2 13/16
21/7 + 45/16 is 93/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
21/7 = 21 × 16/7 × 16 = 336/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
45/16 = 45 × 7/16 × 7 = 315/112 - Add the two like fractions:
336/112 + 315/112 = 336 + 315/112 = 651/112 - 651/112 simplified gives 93/16
- So, 21/7 + 45/16 = 93/16
In mixed form: 513/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/7+45/16 21/7+90/16 21/14+45/16 21/7+45/32 63/7+45/16 21/7+45/48 21/35+45/16 21/7+45/80 21/49+45/16