Add 18/72 and 30/35
18/72 + 30/35 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 35 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
18/72 = 18 × 35/72 × 35 = 630/2520 - Likewise, for the 2nd fraction, since 35 × 72 = 2520,
30/35 = 30 × 72/35 × 72 = 2160/2520 - Add the two like fractions:
630/2520 + 2160/2520 = 630 + 2160/2520 = 2790/2520 - 2790/2520 simplified gives 31/28
- So, 18/72 + 30/35 = 31/28
In mixed form: 13/28
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