Add 90/15 and 12/28
1st number: 6 0/15, 2nd number: 12/28
90/15 + 12/28 is 45/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
90/15 = 90 × 28/15 × 28 = 2520/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
12/28 = 12 × 15/28 × 15 = 180/420 - Add the two like fractions:
2520/420 + 180/420 = 2520 + 180/420 = 2700/420 - 2700/420 simplified gives 45/7
- So, 90/15 + 12/28 = 45/7
In mixed form: 63/7
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