Add 81/7 and 90/80
1st number: 11 4/7, 2nd number: 1 10/80
81/7 + 90/80 is 711/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
81/7 = 81 × 80/7 × 80 = 6480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560 - Add the two like fractions:
6480/560 + 630/560 = 6480 + 630/560 = 7110/560 - 7110/560 simplified gives 711/56
- So, 81/7 + 90/80 = 711/56
In mixed form: 1239/56
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