Add 54/45 and 5/21
1st number: 1 9/45, 2nd number: 5/21
54/45 + 5/21 is 151/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
54/45 = 54 × 7/45 × 7 = 378/315 - Likewise, for the 2nd fraction, since 21 × 15 = 315,
5/21 = 5 × 15/21 × 15 = 75/315 - Add the two like fractions:
378/315 + 75/315 = 378 + 75/315 = 453/315 - 453/315 simplified gives 151/105
- So, 54/45 + 5/21 = 151/105
In mixed form: 146/105
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