Add 15/84 and 90/30
1st number: 15/84, 2nd number: 3 0/30
15/84 + 90/30 is 89/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
90/30 = 90 × 14/30 × 14 = 1260/420 - Add the two like fractions:
75/420 + 1260/420 = 75 + 1260/420 = 1335/420 - 1335/420 simplified gives 89/28
- So, 15/84 + 90/30 = 89/28
In mixed form: 35/28
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