Add 21/25 and 16/42
21/25 + 16/42 is 641/525.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 25 × 42 = 1050,
21/25 = 21 × 42/25 × 42 = 882/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
16/42 = 16 × 25/42 × 25 = 400/1050 - Add the two like fractions:
882/1050 + 400/1050 = 882 + 400/1050 = 1282/1050 - 1282/1050 simplified gives 641/525
- So, 21/25 + 16/42 = 641/525
In mixed form: 1116/525
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