Add 72/18 and 20/25
1st number: 4 0/18, 2nd number: 20/25
72/18 + 20/25 is 24/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
72/18 = 72 × 25/18 × 25 = 1800/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
20/25 = 20 × 18/25 × 18 = 360/450 - Add the two like fractions:
1800/450 + 360/450 = 1800 + 360/450 = 2160/450 - 2160/450 simplified gives 24/5
- So, 72/18 + 20/25 = 24/5
In mixed form: 44/5
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