Add 90/18 and 70/25
1st number: 5 0/18, 2nd number: 2 20/25
90/18 + 70/25 is 39/5.
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,
90/18 = 90 × 25/18 × 25 = 2250/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
70/25 = 70 × 18/25 × 18 = 1260/450 - Add the two like fractions:
2250/450 + 1260/450 = 2250 + 1260/450 = 3510/450 - 3510/450 simplified gives 39/5
- So, 90/18 + 70/25 = 39/5
In mixed form: 74/5
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