Add 70/45 and 4/20
1st number: 1 25/45, 2nd number: 4/20
70/45 + 4/20 is 79/45.
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,
70/45 = 70 × 4/45 × 4 = 280/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
4/20 = 4 × 9/20 × 9 = 36/180 - Add the two like fractions:
280/180 + 36/180 = 280 + 36/180 = 316/180 - 316/180 simplified gives 79/45
- So, 70/45 + 4/20 = 79/45
In mixed form: 134/45
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