Add 72/40 and 20/45
1st number: 1 32/40, 2nd number: 20/45
72/40 + 20/45 is 101/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
72/40 = 72 × 9/40 × 9 = 648/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
20/45 = 20 × 8/45 × 8 = 160/360 - Add the two like fractions:
648/360 + 160/360 = 648 + 160/360 = 808/360 - 808/360 simplified gives 101/45
- So, 72/40 + 20/45 = 101/45
In mixed form: 211/45
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