Add 90/54 and 20/45
1st number: 1 36/54, 2nd number: 20/45
90/54 + 20/45 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 45 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Likewise, for the 2nd fraction, since 45 × 6 = 270,
20/45 = 20 × 6/45 × 6 = 120/270 - Add the two like fractions:
450/270 + 120/270 = 450 + 120/270 = 570/270 - 570/270 simplified gives 19/9
- So, 90/54 + 20/45 = 19/9
In mixed form: 21/9
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