Add 30/21 and 25/4
1st number: 1 9/21, 2nd number: 6 1/4
30/21 + 25/4 is 215/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
30/21 = 30 × 4/21 × 4 = 120/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
25/4 = 25 × 21/4 × 21 = 525/84 - Add the two like fractions:
120/84 + 525/84 = 120 + 525/84 = 645/84 - 645/84 simplified gives 215/28
- So, 30/21 + 25/4 = 215/28
In mixed form: 719/28
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