Add 1/45 and 90/20
1st number: 1/45, 2nd number: 4 10/20
1/45 + 90/20 is 407/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
1/45 = 1 × 4/45 × 4 = 4/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Add the two like fractions:
4/180 + 810/180 = 4 + 810/180 = 814/180 - 814/180 simplified gives 407/90
- So, 1/45 + 90/20 = 407/90
In mixed form: 447/90
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