Add 15/4 and 45/42
1st number: 3 3/4, 2nd number: 1 3/42
15/4 + 45/42 is 135/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
15/4 = 15 × 21/4 × 21 = 315/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
45/42 = 45 × 2/42 × 2 = 90/84 - Add the two like fractions:
315/84 + 90/84 = 315 + 90/84 = 405/84 - 405/84 simplified gives 135/28
- So, 15/4 + 45/42 = 135/28
In mixed form: 423/28
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