Add 54/14 and 30/40
1st number: 3 12/14, 2nd number: 30/40
54/14 + 30/40 is 129/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
54/14 = 54 × 20/14 × 20 = 1080/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Add the two like fractions:
1080/280 + 210/280 = 1080 + 210/280 = 1290/280 - 1290/280 simplified gives 129/28
- So, 54/14 + 30/40 = 129/28
In mixed form: 417/28
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