Add 3/5 and 42/45
3/5 + 42/45 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
3/5 = 3 × 9/5 × 9 = 27/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
42/45 = 42 × 1/45 × 1 = 42/45 - Add the two like fractions:
27/45 + 42/45 = 27 + 42/45 = 69/45 - 69/45 simplified gives 23/15
- So, 3/5 + 42/45 = 23/15
In mixed form: 18/15
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