Add 12/7 and 54/40
1st number: 1 5/7, 2nd number: 1 14/40
12/7 + 54/40 is 429/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
12/7 = 12 × 40/7 × 40 = 480/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
54/40 = 54 × 7/40 × 7 = 378/280 - Add the two like fractions:
480/280 + 378/280 = 480 + 378/280 = 858/280 - 858/280 simplified gives 429/140
- So, 12/7 + 54/40 = 429/140
In mixed form: 39/140
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