Add 15/35 and 90/84
1st number: 15/35, 2nd number: 1 6/84
15/35 + 90/84 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
15/35 = 15 × 12/35 × 12 = 180/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
180/420 + 450/420 = 180 + 450/420 = 630/420 - 630/420 simplified gives 3/2
- So, 15/35 + 90/84 = 3/2
In mixed form: 11/2
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