Add 72/45 and 20/25
1st number: 1 27/45, 2nd number: 20/25
72/45 + 20/25 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
72/45 = 72 × 5/45 × 5 = 360/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
20/25 = 20 × 9/25 × 9 = 180/225 - Add the two like fractions:
360/225 + 180/225 = 360 + 180/225 = 540/225 - 540/225 simplified gives 12/5
- So, 72/45 + 20/25 = 12/5
In mixed form: 22/5
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