Add 45/70 and 72/20
1st number: 45/70, 2nd number: 3 12/20
45/70 + 72/20 is 297/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
45/70 = 45 × 2/70 × 2 = 90/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Add the two like fractions:
90/140 + 504/140 = 90 + 504/140 = 594/140 - 594/140 simplified gives 297/70
- So, 45/70 + 72/20 = 297/70
In mixed form: 417/70
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