Add 90/20 and 9/15
1st number: 4 10/20, 2nd number: 9/15
90/20 + 9/15 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Add the two like fractions:
270/60 + 36/60 = 270 + 36/60 = 306/60 - 306/60 simplified gives 51/10
- So, 90/20 + 9/15 = 51/10
In mixed form: 51/10
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