Add 12/45 and 63/72
12/45 + 63/72 is 137/120.
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,
12/45 = 12 × 8/45 × 8 = 96/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
63/72 = 63 × 5/72 × 5 = 315/360 - Add the two like fractions:
96/360 + 315/360 = 96 + 315/360 = 411/360 - 411/360 simplified gives 137/120
- So, 12/45 + 63/72 = 137/120
In mixed form: 117/120
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