Add 12/35 and 21/30
12/35 + 21/30 is 73/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
12/35 = 12 × 6/35 × 6 = 72/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
21/30 = 21 × 7/30 × 7 = 147/210 - Add the two like fractions:
72/210 + 147/210 = 72 + 147/210 = 219/210 - 219/210 simplified gives 73/70
- So, 12/35 + 21/30 = 73/70
In mixed form: 13/70
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