Add 20/21 and 8/16
20/21 + 8/16 is 61/42.
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,
20/21 = 20 × 16/21 × 16 = 320/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
8/16 = 8 × 21/16 × 21 = 168/336 - Add the two like fractions:
320/336 + 168/336 = 320 + 168/336 = 488/336 - 488/336 simplified gives 61/42
- So, 20/21 + 8/16 = 61/42
In mixed form: 119/42
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