Add 18/70 and 12/72
18/70 + 12/72 is 89/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
18/70 = 18 × 36/70 × 36 = 648/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
12/72 = 12 × 35/72 × 35 = 420/2520 - Add the two like fractions:
648/2520 + 420/2520 = 648 + 420/2520 = 1068/2520 - 1068/2520 simplified gives 89/210
- So, 18/70 + 12/72 = 89/210
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