Add 2/5 and 12/45
2/5 + 12/45 is 2/3.
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,
2/5 = 2 × 9/5 × 9 = 18/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
12/45 = 12 × 1/45 × 1 = 12/45 - Add the two like fractions:
18/45 + 12/45 = 18 + 12/45 = 30/45 - 30/45 simplified gives 2/3
- So, 2/5 + 12/45 = 2/3
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