Add 2/90 and 40/20
1st number: 2/90, 2nd number: 2 0/20
2/90 + 40/20 is 91/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
2/90 = 2 × 2/90 × 2 = 4/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
40/20 = 40 × 9/20 × 9 = 360/180 - Add the two like fractions:
4/180 + 360/180 = 4 + 360/180 = 364/180 - 364/180 simplified gives 91/45
- So, 2/90 + 40/20 = 91/45
In mixed form: 21/45
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