Add 20/45 and 35/72
20/45 + 35/72 is 67/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
20/45 = 20 × 8/45 × 8 = 160/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
35/72 = 35 × 5/72 × 5 = 175/360 - Add the two like fractions:
160/360 + 175/360 = 160 + 175/360 = 335/360 - 335/360 simplified gives 67/72
- So, 20/45 + 35/72 = 67/72
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