Add 90/84 and 1/15
1st number: 1 6/84, 2nd number: 1/15
90/84 + 1/15 is 239/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
1/15 = 1 × 28/15 × 28 = 28/420 - Add the two like fractions:
450/420 + 28/420 = 450 + 28/420 = 478/420 - 478/420 simplified gives 239/210
- So, 90/84 + 1/15 = 239/210
In mixed form: 129/210
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