Add 81/45 and 90/54
1st number: 1 36/45, 2nd number: 1 36/54
81/45 + 90/54 is 52/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
81/45 = 81 × 6/45 × 6 = 486/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Add the two like fractions:
486/270 + 450/270 = 486 + 450/270 = 936/270 - 936/270 simplified gives 52/15
- So, 81/45 + 90/54 = 52/15
In mixed form: 37/15
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Related: 81/90+90/54