Add 70/40 and 72/80
1st number: 1 30/40, 2nd number: 72/80
70/40 + 72/80 is 53/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
70/40 = 70 × 2/40 × 2 = 140/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Add the two like fractions:
140/80 + 72/80 = 140 + 72/80 = 212/80 - 212/80 simplified gives 53/20
- So, 70/40 + 72/80 = 53/20
In mixed form: 213/20
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Related: 70/80+72/80