Add 90/72 and 56/45
1st number: 1 18/72, 2nd number: 1 11/45
90/72 + 56/45 is 449/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
56/45 = 56 × 8/45 × 8 = 448/360 - Add the two like fractions:
450/360 + 448/360 = 450 + 448/360 = 898/360 - 898/360 simplified gives 449/180
- So, 90/72 + 56/45 = 449/180
In mixed form: 289/180
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