Add 28/42 and 16/20
28/42 + 16/20 is 22/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
28/42 = 28 × 10/42 × 10 = 280/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
16/20 = 16 × 21/20 × 21 = 336/420 - Add the two like fractions:
280/420 + 336/420 = 280 + 336/420 = 616/420 - 616/420 simplified gives 22/15
- So, 28/42 + 16/20 = 22/15
In mixed form: 17/15
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