Add 4/21 and 7/16
4/21 + 7/16 is 211/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
4/21 = 4 × 16/21 × 16 = 64/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
7/16 = 7 × 21/16 × 21 = 147/336 - Add the two like fractions:
64/336 + 147/336 = 64 + 147/336 = 211/336 - So, 4/21 + 7/16 = 211/336
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