Add 21/45 and 70/30
1st number: 21/45, 2nd number: 2 10/30
21/45 + 70/30 is 14/5.
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,
70/30 = 70 × 3/30 × 3 = 210/90 - Add the two like fractions:
42/90 + 210/90 = 42 + 210/90 = 252/90 - 252/90 simplified gives 14/5
- So, 21/45 + 70/30 = 14/5
In mixed form: 24/5
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