Add 90/80 and 9/28
1st number: 1 10/80, 2nd number: 9/28
90/80 + 9/28 is 81/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
9/28 = 9 × 20/28 × 20 = 180/560 - Add the two like fractions:
630/560 + 180/560 = 630 + 180/560 = 810/560 - 810/560 simplified gives 81/56
- So, 90/80 + 9/28 = 81/56
In mixed form: 125/56
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