Add 42/80 and 54/70
42/80 + 54/70 is 363/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
54/70 = 54 × 8/70 × 8 = 432/560 - Add the two like fractions:
294/560 + 432/560 = 294 + 432/560 = 726/560 - 726/560 simplified gives 363/280
- So, 42/80 + 54/70 = 363/280
In mixed form: 183/280
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