Add 42/28 and 9/80
1st number: 1 14/28, 2nd number: 9/80
42/28 + 9/80 is 129/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
42/28 = 42 × 20/28 × 20 = 840/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
9/80 = 9 × 7/80 × 7 = 63/560 - Add the two like fractions:
840/560 + 63/560 = 840 + 63/560 = 903/560 - 903/560 simplified gives 129/80
- So, 42/28 + 9/80 = 129/80
In mixed form: 149/80
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