Add 81/30 and 12/35
1st number: 2 21/30, 2nd number: 12/35
81/30 + 12/35 is 213/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
81/30 = 81 × 7/30 × 7 = 567/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
12/35 = 12 × 6/35 × 6 = 72/210 - Add the two like fractions:
567/210 + 72/210 = 567 + 72/210 = 639/210 - 639/210 simplified gives 213/70
- So, 81/30 + 12/35 = 213/70
In mixed form: 33/70
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