Add 42/56 and 54/80
42/56 + 54/80 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 56 × 10 = 560,
42/56 = 42 × 10/56 × 10 = 420/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
54/80 = 54 × 7/80 × 7 = 378/560 - Add the two like fractions:
420/560 + 378/560 = 420 + 378/560 = 798/560 - 798/560 simplified gives 57/40
- So, 42/56 + 54/80 = 57/40
In mixed form: 117/40
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