Add 40/45 and 20/15
1st number: 40/45, 2nd number: 1 5/15
40/45 + 20/15 is 20/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
40/45 = 40 × 1/45 × 1 = 40/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
20/15 = 20 × 3/15 × 3 = 60/45 - Add the two like fractions:
40/45 + 60/45 = 40 + 60/45 = 100/45 - 100/45 simplified gives 20/9
- So, 40/45 + 20/15 = 20/9
In mixed form: 22/9
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