Add 49/18 and 90/20
1st number: 2 13/18, 2nd number: 4 10/20
49/18 + 90/20 is 65/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
49/18 = 49 × 10/18 × 10 = 490/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Add the two like fractions:
490/180 + 810/180 = 490 + 810/180 = 1300/180 - 1300/180 simplified gives 65/9
- So, 49/18 + 90/20 = 65/9
In mixed form: 72/9
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