Add 3/9 and 42/49
3/9 + 42/49 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
3/9 = 3 × 49/9 × 49 = 147/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
42/49 = 42 × 9/49 × 9 = 378/441 - Add the two like fractions:
147/441 + 378/441 = 147 + 378/441 = 525/441 - 525/441 simplified gives 25/21
- So, 3/9 + 42/49 = 25/21
In mixed form: 14/21
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