Add 72/45 and 42/24
1st number: 1 27/45, 2nd number: 1 18/24
72/45 + 42/24 is 67/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
72/45 = 72 × 8/45 × 8 = 576/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
42/24 = 42 × 15/24 × 15 = 630/360 - Add the two like fractions:
576/360 + 630/360 = 576 + 630/360 = 1206/360 - 1206/360 simplified gives 67/20
- So, 72/45 + 42/24 = 67/20
In mixed form: 37/20
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