Add 21/45 and 40/30
1st number: 21/45, 2nd number: 1 10/30
21/45 + 40/30 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
21/45 = 21 × 2/45 × 2 = 42/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
40/30 = 40 × 3/30 × 3 = 120/90 - Add the two like fractions:
42/90 + 120/90 = 42 + 120/90 = 162/90 - 162/90 simplified gives 9/5
- So, 21/45 + 40/30 = 9/5
In mixed form: 14/5
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