Add 45/54 and 63/42
1st number: 45/54, 2nd number: 1 21/42
45/54 + 63/42 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
45/54 = 45 × 7/54 × 7 = 315/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378 - Add the two like fractions:
315/378 + 567/378 = 315 + 567/378 = 882/378 - 882/378 simplified gives 7/3
- So, 45/54 + 63/42 = 7/3
In mixed form: 21/3
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