Add 15/16 and 25/42
15/16 + 25/42 is 515/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
15/16 = 15 × 21/16 × 21 = 315/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
25/42 = 25 × 8/42 × 8 = 200/336 - Add the two like fractions:
315/336 + 200/336 = 315 + 200/336 = 515/336 - So, 15/16 + 25/42 = 515/336
In mixed form: 1179/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/16+25/42 15/16+50/42 15/32+25/42 15/16+25/84 45/16+25/42 15/16+75/42 15/48+25/42 75/16+25/42 15/80+25/42