Add 90/84 and 4/15
1st number: 1 6/84, 2nd number: 4/15
90/84 + 4/15 is 281/210.
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,
4/15 = 4 × 28/15 × 28 = 112/420 - Add the two like fractions:
450/420 + 112/420 = 450 + 112/420 = 562/420 - 562/420 simplified gives 281/210
- So, 90/84 + 4/15 = 281/210
In mixed form: 171/210
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