Add 18/70 and 70/72
18/70 + 70/72 is 1549/1260.
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,
70/72 = 70 × 35/72 × 35 = 2450/2520 - Add the two like fractions:
648/2520 + 2450/2520 = 648 + 2450/2520 = 3098/2520 - 3098/2520 simplified gives 1549/1260
- So, 18/70 + 70/72 = 1549/1260
In mixed form: 1289/1260
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