Add 40/45 and 72/20
1st number: 40/45, 2nd number: 3 12/20
40/45 + 72/20 is 202/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
40/45 = 40 × 4/45 × 4 = 160/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
72/20 = 72 × 9/20 × 9 = 648/180 - Add the two like fractions:
160/180 + 648/180 = 160 + 648/180 = 808/180 - 808/180 simplified gives 202/45
- So, 40/45 + 72/20 = 202/45
In mixed form: 422/45
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