Add 90/10 and 12/84
1st number: 9 0/10, 2nd number: 12/84
90/10 + 12/84 is 64/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
90/10 = 90 × 42/10 × 42 = 3780/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Add the two like fractions:
3780/420 + 60/420 = 3780 + 60/420 = 3840/420 - 3840/420 simplified gives 64/7
- So, 90/10 + 12/84 = 64/7
In mixed form: 91/7
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