Add 90/15 and 21/27
1st number: 6 0/15, 2nd number: 21/27
90/15 + 21/27 is 61/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
90/15 = 90 × 9/15 × 9 = 810/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Add the two like fractions:
810/135 + 105/135 = 810 + 105/135 = 915/135 - 915/135 simplified gives 61/9
- So, 90/15 + 21/27 = 61/9
In mixed form: 67/9
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