Add 98/12 and 90/70
1st number: 8 2/12, 2nd number: 1 20/70
98/12 + 90/70 is 397/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
98/12 = 98 × 35/12 × 35 = 3430/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
90/70 = 90 × 6/70 × 6 = 540/420 - Add the two like fractions:
3430/420 + 540/420 = 3430 + 540/420 = 3970/420 - 3970/420 simplified gives 397/42
- So, 98/12 + 90/70 = 397/42
In mixed form: 919/42
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