Add 40/2 and 21/90
1st number: 20 0/2, 2nd number: 21/90
40/2 + 21/90 is 607/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
40/2 = 40 × 45/2 × 45 = 1800/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
1800/90 + 21/90 = 1800 + 21/90 = 1821/90 - 1821/90 simplified gives 607/30
- So, 40/2 + 21/90 = 607/30
In mixed form: 207/30
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