Add 20/25 and 42/45
20/25 + 42/45 is 26/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
20/25 = 20 × 9/25 × 9 = 180/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
42/45 = 42 × 5/45 × 5 = 210/225 - Add the two like fractions:
180/225 + 210/225 = 180 + 210/225 = 390/225 - 390/225 simplified gives 26/15
- So, 20/25 + 42/45 = 26/15
In mixed form: 111/15
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