Add 42/80 and 90/14
1st number: 42/80, 2nd number: 6 6/14
42/80 + 90/14 is 1947/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 14 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 14 × 40 = 560,
90/14 = 90 × 40/14 × 40 = 3600/560 - Add the two like fractions:
294/560 + 3600/560 = 294 + 3600/560 = 3894/560 - 3894/560 simplified gives 1947/280
- So, 42/80 + 90/14 = 1947/280
In mixed form: 6267/280
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