Add 21/30 and 70/25
1st number: 21/30, 2nd number: 2 20/25
21/30 + 70/25 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
21/30 = 21 × 5/30 × 5 = 105/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
70/25 = 70 × 6/25 × 6 = 420/150 - Add the two like fractions:
105/150 + 420/150 = 105 + 420/150 = 525/150 - 525/150 simplified gives 7/2
- So, 21/30 + 70/25 = 7/2
In mixed form: 31/2
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