Add 4/12 and 21/70
4/12 + 21/70 is 19/30.
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,
4/12 = 4 × 35/12 × 35 = 140/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
21/70 = 21 × 6/70 × 6 = 126/420 - Add the two like fractions:
140/420 + 126/420 = 140 + 126/420 = 266/420 - 266/420 simplified gives 19/30
- So, 4/12 + 21/70 = 19/30
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