Add 90/15 and 18/4
1st number: 6 0/15, 2nd number: 4 2/4
90/15 + 18/4 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
90/15 = 90 × 4/15 × 4 = 360/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
18/4 = 18 × 15/4 × 15 = 270/60 - Add the two like fractions:
360/60 + 270/60 = 360 + 270/60 = 630/60 - 630/60 simplified gives 21/2
- So, 90/15 + 18/4 = 21/2
In mixed form: 101/2
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