Add 70/25 and 90/18
1st number: 2 20/25, 2nd number: 5 0/18
70/25 + 90/18 is 39/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
70/25 = 70 × 18/25 × 18 = 1260/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
90/18 = 90 × 25/18 × 25 = 2250/450 - Add the two like fractions:
1260/450 + 2250/450 = 1260 + 2250/450 = 3510/450 - 3510/450 simplified gives 39/5
- So, 70/25 + 90/18 = 39/5
In mixed form: 74/5
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