Add 25/21 and 90/12
1st number: 1 4/21, 2nd number: 7 6/12
25/21 + 90/12 is 365/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Add the two like fractions:
100/84 + 630/84 = 100 + 630/84 = 730/84 - 730/84 simplified gives 365/42
- So, 25/21 + 90/12 = 365/42
In mixed form: 829/42
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