Add 42/75 and 21/25
42/75 + 21/25 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
42/75 = 42 × 1/75 × 1 = 42/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
21/25 = 21 × 3/25 × 3 = 63/75 - Add the two like fractions:
42/75 + 63/75 = 42 + 63/75 = 105/75 - 105/75 simplified gives 7/5
- So, 42/75 + 21/25 = 7/5
In mixed form: 12/5
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